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Finding the Fourth Proportional to 435,854.72, 601,236.68 and 405,029.77

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Solution

The fourth proportional to 435,854.72, 601,236.68 and 405,029.77 is: 558,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,854.72 : 601,236.68 = 405,029.77 : x
  2. Step 2: Convert to fraction form
    435,854.72/601,236.68 = 405,029.77/x
  3. Step 3: Cross multiply
    435,854.72x = 601,236.68 × 405,029.77
  4. Step 4: Simplify right side
    435,854.72x = 243,518,750,687.72
  5. Step 5: Solve for x
    x = 243,518,750,687.72/435,854.72
  6. Step 6: Final answer
    x = 558,715.41

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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.