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Finding the Fourth Proportional to 532,543.76, 799,212.37 and 390,755.42

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Solution

The fourth proportional to 532,543.76, 799,212.37 and 390,755.42 is: 586,424.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,543.76 : 799,212.37 = 390,755.42 : x
  2. Step 2: Convert to fraction form
    532,543.76/799,212.37 = 390,755.42/x
  3. Step 3: Cross multiply
    532,543.76x = 799,212.37 × 390,755.42
  4. Step 4: Simplify right side
    532,543.76x = 312,296,565,308.55
  5. Step 5: Solve for x
    x = 312,296,565,308.55/532,543.76
  6. Step 6: Final answer
    x = 586,424.23

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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.