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Finding the Fourth Proportional to 504,650,617.20, 756,975,925.80 and 493,313,209.20

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Solution

The fourth proportional to 504,650,617.20, 756,975,925.80 and 493,313,209.20 is: 739,969,813.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,650,617.20 : 756,975,925.80 = 493,313,209.20 : x
  2. Step 2: Convert to fraction form
    504,650,617.20/756,975,925.80 = 493,313,209.20/x
  3. Step 3: Cross multiply
    504,650,617.20x = 756,975,925.80 × 493,313,209.20
  4. Step 4: Simplify right side
    504,650,617.20x = 373,426,223,243,539,072
  5. Step 5: Solve for x
    x = 373,426,223,243,539,072/504,650,617.20
  6. Step 6: Final answer
    x = 739,969,813.80

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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.