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Finding the Fourth Proportional to 559,143.48, 838,962.07 and 433,872.12

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Solution

The fourth proportional to 559,143.48, 838,962.07 and 433,872.12 is: 650,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,143.48 : 838,962.07 = 433,872.12 : x
  2. Step 2: Convert to fraction form
    559,143.48/838,962.07 = 433,872.12/x
  3. Step 3: Cross multiply
    559,143.48x = 838,962.07 × 433,872.12
  4. Step 4: Simplify right side
    559,143.48x = 364,002,250,825.81
  5. Step 5: Solve for x
    x = 364,002,250,825.81/559,143.48
  6. Step 6: Final answer
    x = 650,999.72

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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.