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Finding the Fourth Proportional to 482,666.40, 723,286.80 and 349,826.40

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Solution

The fourth proportional to 482,666.40, 723,286.80 and 349,826.40 is: 524,222.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,666.40 : 723,286.80 = 349,826.40 : x
  2. Step 2: Convert to fraction form
    482,666.40/723,286.80 = 349,826.40/x
  3. Step 3: Cross multiply
    482,666.40x = 723,286.80 × 349,826.40
  4. Step 4: Simplify right side
    482,666.40x = 253,024,817,411.52
  5. Step 5: Solve for x
    x = 253,024,817,411.52/482,666.40
  6. Step 6: Final answer
    x = 524,222.98

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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.