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Finding the Fourth Proportional to 564,727,871.73, 779,343,386.79 and 313,842,836.12

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Solution

The fourth proportional to 564,727,871.73, 779,343,386.79 and 313,842,836.12 is: 433,113,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,727,871.73 : 779,343,386.79 = 313,842,836.12 : x
  2. Step 2: Convert to fraction form
    564,727,871.73/779,343,386.79 = 313,842,836.12/x
  3. Step 3: Cross multiply
    564,727,871.73x = 779,343,386.79 × 313,842,836.12
  4. Step 4: Simplify right side
    564,727,871.73x = 244,591,338,818,810,528
  5. Step 5: Solve for x
    x = 244,591,338,818,810,528/564,727,871.73
  6. Step 6: Final answer
    x = 433,113,630.58

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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.