Home / 721,635,237,880.35-995,942,001,927.10-428,661,318,210.54

Finding the Fourth Proportional to 721,635,237,880.35, 995,942,001,927.10 and 428,661,318,210.54

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Solution

The fourth proportional to 721,635,237,880.35, 995,942,001,927.10 and 428,661,318,210.54 is: 591,603,332,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,635,237,880.35 : 995,942,001,927.10 = 428,661,318,210.54 : x
  2. Step 2: Convert to fraction form
    721,635,237,880.35/995,942,001,927.10 = 428,661,318,210.54/x
  3. Step 3: Cross multiply
    721,635,237,880.35x = 995,942,001,927.10 × 428,661,318,210.54
  4. Step 4: Simplify right side
    721,635,237,880.35x = 426,921,811,407,314,802,966,528
  5. Step 5: Solve for x
    x = 426,921,811,407,314,802,966,528/721,635,237,880.35
  6. Step 6: Final answer
    x = 591,603,332,261.47

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.