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Finding the Fourth Proportional to 559,984,666.60, 839,976,999.90 and 354,847,565.80

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Solution

The fourth proportional to 559,984,666.60, 839,976,999.90 and 354,847,565.80 is: 532,271,348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,984,666.60 : 839,976,999.90 = 354,847,565.80 : x
  2. Step 2: Convert to fraction form
    559,984,666.60/839,976,999.90 = 354,847,565.80/x
  3. Step 3: Cross multiply
    559,984,666.60x = 839,976,999.90 × 354,847,565.80
  4. Step 4: Simplify right side
    559,984,666.60x = 298,063,793,742,501,824
  5. Step 5: Solve for x
    x = 298,063,793,742,501,824/559,984,666.60
  6. Step 6: Final answer
    x = 532,271,348.70

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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.