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Finding the Fourth Proportional to 478,224,164.20, 717,336,246.30 and 478,224,164.20

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Solution

The fourth proportional to 478,224,164.20, 717,336,246.30 and 478,224,164.20 is: 717,336,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,224,164.20 : 717,336,246.30 = 478,224,164.20 : x
  2. Step 2: Convert to fraction form
    478,224,164.20/717,336,246.30 = 478,224,164.20/x
  3. Step 3: Cross multiply
    478,224,164.20x = 717,336,246.30 × 478,224,164.20
  4. Step 4: Simplify right side
    478,224,164.20x = 343,047,526,837,182,784
  5. Step 5: Solve for x
    x = 343,047,526,837,182,784/478,224,164.20
  6. Step 6: Final answer
    x = 717,336,246.30

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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.