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Finding the Fourth Proportional to 606,947.10, 910,420.65 and 157,631.10

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Solution

The fourth proportional to 606,947.10, 910,420.65 and 157,631.10 is: 236,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,947.10 : 910,420.65 = 157,631.10 : x
  2. Step 2: Convert to fraction form
    606,947.10/910,420.65 = 157,631.10/x
  3. Step 3: Cross multiply
    606,947.10x = 910,420.65 × 157,631.10
  4. Step 4: Simplify right side
    606,947.10x = 143,510,608,522.22
  5. Step 5: Solve for x
    x = 143,510,608,522.22/606,947.10
  6. Step 6: Final answer
    x = 236,446.65

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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.