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Finding the Fourth Proportional to 514,803,713.20, 772,205,569.80 and 514,803,713.20

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Solution

The fourth proportional to 514,803,713.20, 772,205,569.80 and 514,803,713.20 is: 772,205,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,803,713.20 : 772,205,569.80 = 514,803,713.20 : x
  2. Step 2: Convert to fraction form
    514,803,713.20/772,205,569.80 = 514,803,713.20/x
  3. Step 3: Cross multiply
    514,803,713.20x = 772,205,569.80 × 514,803,713.20
  4. Step 4: Simplify right side
    514,803,713.20x = 397,534,294,686,761,728
  5. Step 5: Solve for x
    x = 397,534,294,686,761,728/514,803,713.20
  6. Step 6: Final answer
    x = 772,205,569.80

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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.