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Finding the Fourth Proportional to 653,423.64, 901,712.89 and 363,036.51

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Solution

The fourth proportional to 653,423.64, 901,712.89 and 363,036.51 is: 500,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,423.64 : 901,712.89 = 363,036.51 : x
  2. Step 2: Convert to fraction form
    653,423.64/901,712.89 = 363,036.51/x
  3. Step 3: Cross multiply
    653,423.64x = 901,712.89 × 363,036.51
  4. Step 4: Simplify right side
    653,423.64x = 327,354,700,607.61
  5. Step 5: Solve for x
    x = 327,354,700,607.61/653,423.64
  6. Step 6: Final answer
    x = 500,983.87

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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.