Home / 701,580,948.76-968,169,965.28-388,308,455.92

Finding the Fourth Proportional to 701,580,948.76, 968,169,965.28 and 388,308,455.92

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Solution

The fourth proportional to 701,580,948.76, 968,169,965.28 and 388,308,455.92 is: 535,859,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,580,948.76 : 968,169,965.28 = 388,308,455.92 : x
  2. Step 2: Convert to fraction form
    701,580,948.76/968,169,965.28 = 388,308,455.92/x
  3. Step 3: Cross multiply
    701,580,948.76x = 968,169,965.28 × 388,308,455.92
  4. Step 4: Simplify right side
    701,580,948.76x = 375,948,584,285,996,800
  5. Step 5: Solve for x
    x = 375,948,584,285,996,800/701,580,948.76
  6. Step 6: Final answer
    x = 535,859,169.14

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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.