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Finding the Fourth Proportional to 544,747,374.40, 817,121,061.60 and 502,657,247.20

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Solution

The fourth proportional to 544,747,374.40, 817,121,061.60 and 502,657,247.20 is: 753,985,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,747,374.40 : 817,121,061.60 = 502,657,247.20 : x
  2. Step 2: Convert to fraction form
    544,747,374.40/817,121,061.60 = 502,657,247.20/x
  3. Step 3: Cross multiply
    544,747,374.40x = 817,121,061.60 × 502,657,247.20
  4. Step 4: Simplify right side
    544,747,374.40x = 410,731,823,452,997,632
  5. Step 5: Solve for x
    x = 410,731,823,452,997,632/544,747,374.40
  6. Step 6: Final answer
    x = 753,985,870.80

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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.