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Finding the Fourth Proportional to 533,406.03, 736,101.05 and 291,687.86

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Solution

The fourth proportional to 533,406.03, 736,101.05 and 291,687.86 is: 402,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,406.03 : 736,101.05 = 291,687.86 : x
  2. Step 2: Convert to fraction form
    533,406.03/736,101.05 = 291,687.86/x
  3. Step 3: Cross multiply
    533,406.03x = 736,101.05 × 291,687.86
  4. Step 4: Simplify right side
    533,406.03x = 214,711,740,018.25
  5. Step 5: Solve for x
    x = 214,711,740,018.25/533,406.03
  6. Step 6: Final answer
    x = 402,529.65

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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.