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Finding the Fourth Proportional to 711,347,627.00, 981,762,407.11 and 409,875,199.52

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Solution

The fourth proportional to 711,347,627.00, 981,762,407.11 and 409,875,199.52 is: 565,686,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,347,627.00 : 981,762,407.11 = 409,875,199.52 : x
  2. Step 2: Convert to fraction form
    711,347,627.00/981,762,407.11 = 409,875,199.52/x
  3. Step 3: Cross multiply
    711,347,627.00x = 981,762,407.11 × 409,875,199.52
  4. Step 4: Simplify right side
    711,347,627.00x = 402,400,062,491,062,528
  5. Step 5: Solve for x
    x = 402,400,062,491,062,528/711,347,627.00
  6. Step 6: Final answer
    x = 565,686,940.13

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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.