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Finding the Fourth Proportional to 611,747.89, 916,224.11 and 292,123.64

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Solution

The fourth proportional to 611,747.89, 916,224.11 and 292,123.64 is: 437,518.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,747.89 : 916,224.11 = 292,123.64 : x
  2. Step 2: Convert to fraction form
    611,747.89/916,224.11 = 292,123.64/x
  3. Step 3: Cross multiply
    611,747.89x = 916,224.11 × 292,123.64
  4. Step 4: Simplify right side
    611,747.89x = 267,650,721,417.49
  5. Step 5: Solve for x
    x = 267,650,721,417.49/611,747.89
  6. Step 6: Final answer
    x = 437,518.01

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1.5x scale

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.