Home / 714,196.48-985,588.40-391,911.96

Finding the Fourth Proportional to 714,196.48, 985,588.40 and 391,911.96

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Solution

The fourth proportional to 714,196.48, 985,588.40 and 391,911.96 is: 540,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,196.48 : 985,588.40 = 391,911.96 : x
  2. Step 2: Convert to fraction form
    714,196.48/985,588.40 = 391,911.96/x
  3. Step 3: Cross multiply
    714,196.48x = 985,588.40 × 391,911.96
  4. Step 4: Simplify right side
    714,196.48x = 386,263,881,597.26
  5. Step 5: Solve for x
    x = 386,263,881,597.26/714,196.48
  6. Step 6: Final answer
    x = 540,837.00

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1.5x scale

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.