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Finding the Fourth Proportional to 577,672.60, 865,587.30 and 483,669.40

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Solution

The fourth proportional to 577,672.60, 865,587.30 and 483,669.40 is: 724,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,672.60 : 865,587.30 = 483,669.40 : x
  2. Step 2: Convert to fraction form
    577,672.60/865,587.30 = 483,669.40/x
  3. Step 3: Cross multiply
    577,672.60x = 865,587.30 × 483,669.40
  4. Step 4: Simplify right side
    577,672.60x = 418,658,090,038.62
  5. Step 5: Solve for x
    x = 418,658,090,038.62/577,672.60
  6. Step 6: Final answer
    x = 724,732.47

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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.