Home / 661,608,217.60-992,412,326.40-651,404,550.40

Finding the Fourth Proportional to 661,608,217.60, 992,412,326.40 and 651,404,550.40

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Solution

The fourth proportional to 661,608,217.60, 992,412,326.40 and 651,404,550.40 is: 977,106,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,608,217.60 : 992,412,326.40 = 651,404,550.40 : x
  2. Step 2: Convert to fraction form
    661,608,217.60/992,412,326.40 = 651,404,550.40/x
  3. Step 3: Cross multiply
    661,608,217.60x = 992,412,326.40 × 651,404,550.40
  4. Step 4: Simplify right side
    661,608,217.60x = 646,461,905,290,009,984
  5. Step 5: Solve for x
    x = 646,461,905,290,009,984/661,608,217.60
  6. Step 6: Final answer
    x = 977,106,825.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.