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Finding the Fourth Proportional to 532,347.63, 798,127.78 and 321,938.79

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Solution

The fourth proportional to 532,347.63, 798,127.78 and 321,938.79 is: 482,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,347.63 : 798,127.78 = 321,938.79 : x
  2. Step 2: Convert to fraction form
    532,347.63/798,127.78 = 321,938.79/x
  3. Step 3: Cross multiply
    532,347.63x = 798,127.78 × 321,938.79
  4. Step 4: Simplify right side
    532,347.63x = 256,948,286,158.25
  5. Step 5: Solve for x
    x = 256,948,286,158.25/532,347.63
  6. Step 6: Final answer
    x = 482,670.11

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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.