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Finding the Fourth Proportional to 604,631.40, 906,947.10 and 155,351.40

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Solution

The fourth proportional to 604,631.40, 906,947.10 and 155,351.40 is: 233,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,631.40 : 906,947.10 = 155,351.40 : x
  2. Step 2: Convert to fraction form
    604,631.40/906,947.10 = 155,351.40/x
  3. Step 3: Cross multiply
    604,631.40x = 906,947.10 × 155,351.40
  4. Step 4: Simplify right side
    604,631.40x = 140,895,501,710.94
  5. Step 5: Solve for x
    x = 140,895,501,710.94/604,631.40
  6. Step 6: Final answer
    x = 233,027.10

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Similar ratio
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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.