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Finding the Fourth Proportional to 528,430,772.70, 792,646,159.05 and 528,430,772.70

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Solution

The fourth proportional to 528,430,772.70, 792,646,159.05 and 528,430,772.70 is: 792,646,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,430,772.70 : 792,646,159.05 = 528,430,772.70 : x
  2. Step 2: Convert to fraction form
    528,430,772.70/792,646,159.05 = 528,430,772.70/x
  3. Step 3: Cross multiply
    528,430,772.70x = 792,646,159.05 × 528,430,772.70
  4. Step 4: Simplify right side
    528,430,772.70x = 418,858,622,304,478,592
  5. Step 5: Solve for x
    x = 418,858,622,304,478,592/528,430,772.70
  6. Step 6: Final answer
    x = 792,646,159.05

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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.