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Finding the Fourth Proportional to 615,411.76, 923,529.98 and 216,053.71

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Solution

The fourth proportional to 615,411.76, 923,529.98 and 216,053.71 is: 324,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,411.76 : 923,529.98 = 216,053.71 : x
  2. Step 2: Convert to fraction form
    615,411.76/923,529.98 = 216,053.71/x
  3. Step 3: Cross multiply
    615,411.76x = 923,529.98 × 216,053.71
  4. Step 4: Simplify right side
    615,411.76x = 199,532,078,475.23
  5. Step 5: Solve for x
    x = 199,532,078,475.23/615,411.76
  6. Step 6: Final answer
    x = 324,225.33

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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.