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Finding the Fourth Proportional to 604,123.20, 906,181.60 and 154,843.20

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Solution

The fourth proportional to 604,123.20, 906,181.60 and 154,843.20 is: 232,263.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,123.20 : 906,181.60 = 154,843.20 : x
  2. Step 2: Convert to fraction form
    604,123.20/906,181.60 = 154,843.20/x
  3. Step 3: Cross multiply
    604,123.20x = 906,181.60 × 154,843.20
  4. Step 4: Simplify right side
    604,123.20x = 140,316,058,725.12
  5. Step 5: Solve for x
    x = 140,316,058,725.12/604,123.20
  6. Step 6: Final answer
    x = 232,263.98

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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.