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Finding the Fourth Proportional to 482,359.64, 723,573.30 and 145,403.08

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Solution

The fourth proportional to 482,359.64, 723,573.30 and 145,403.08 is: 218,114.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,359.64 : 723,573.30 = 145,403.08 : x
  2. Step 2: Convert to fraction form
    482,359.64/723,573.30 = 145,403.08/x
  3. Step 3: Cross multiply
    482,359.64x = 723,573.30 × 145,403.08
  4. Step 4: Simplify right side
    482,359.64x = 105,209,786,425.76
  5. Step 5: Solve for x
    x = 105,209,786,425.76/482,359.64
  6. Step 6: Final answer
    x = 218,114.82

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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.