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Finding the Fourth Proportional to 439,877,607.60, 659,816,411.40 and 439,877,607.60

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Solution

The fourth proportional to 439,877,607.60, 659,816,411.40 and 439,877,607.60 is: 659,816,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,877,607.60 : 659,816,411.40 = 439,877,607.60 : x
  2. Step 2: Convert to fraction form
    439,877,607.60/659,816,411.40 = 439,877,607.60/x
  3. Step 3: Cross multiply
    439,877,607.60x = 659,816,411.40 × 439,877,607.60
  4. Step 4: Simplify right side
    439,877,607.60x = 290,238,464,501,849,344
  5. Step 5: Solve for x
    x = 290,238,464,501,849,344/439,877,607.60
  6. Step 6: Final answer
    x = 659,816,411.40

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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.