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Finding the Fourth Proportional to 561,294.42, 841,353.54 and 261,527.82

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Solution

The fourth proportional to 561,294.42, 841,353.54 and 261,527.82 is: 392,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,294.42 : 841,353.54 = 261,527.82 : x
  2. Step 2: Convert to fraction form
    561,294.42/841,353.54 = 261,527.82/x
  3. Step 3: Cross multiply
    561,294.42x = 841,353.54 × 261,527.82
  4. Step 4: Simplify right side
    561,294.42x = 220,037,357,165.48
  5. Step 5: Solve for x
    x = 220,037,357,165.48/561,294.42
  6. Step 6: Final answer
    x = 392,017.72

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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.