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Finding the Fourth Proportional to 347,710,657.20, 521,565,985.80 and 347,710,657.20

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Solution

The fourth proportional to 347,710,657.20, 521,565,985.80 and 347,710,657.20 is: 521,565,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,710,657.20 : 521,565,985.80 = 347,710,657.20 : x
  2. Step 2: Convert to fraction form
    347,710,657.20/521,565,985.80 = 347,710,657.20/x
  3. Step 3: Cross multiply
    347,710,657.20x = 521,565,985.80 × 347,710,657.20
  4. Step 4: Simplify right side
    347,710,657.20x = 181,354,051,695,683,872
  5. Step 5: Solve for x
    x = 181,354,051,695,683,872/347,710,657.20
  6. Step 6: Final answer
    x = 521,565,985.80

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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.