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Finding the Fourth Proportional to 532,978.59, 735,585.48 and 339,324.45

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Solution

The fourth proportional to 532,978.59, 735,585.48 and 339,324.45 is: 468,315.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,978.59 : 735,585.48 = 339,324.45 : x
  2. Step 2: Convert to fraction form
    532,978.59/735,585.48 = 339,324.45/x
  3. Step 3: Cross multiply
    532,978.59x = 735,585.48 × 339,324.45
  4. Step 4: Simplify right side
    532,978.59x = 249,602,138,428.99
  5. Step 5: Solve for x
    x = 249,602,138,428.99/532,978.59
  6. Step 6: Final answer
    x = 468,315.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.