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Finding the Fourth Proportional to 592,148.40, 886,910.40 and 487,172.40

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Solution

The fourth proportional to 592,148.40, 886,910.40 and 487,172.40 is: 729,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,148.40 : 886,910.40 = 487,172.40 : x
  2. Step 2: Convert to fraction form
    592,148.40/886,910.40 = 487,172.40/x
  3. Step 3: Cross multiply
    592,148.40x = 886,910.40 × 487,172.40
  4. Step 4: Simplify right side
    592,148.40x = 432,078,268,152.96
  5. Step 5: Solve for x
    x = 432,078,268,152.96/592,148.40
  6. Step 6: Final answer
    x = 729,679.03

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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.