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Finding the Fourth Proportional to 610,438.20, 915,657.30 and 167,206.20

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Solution

The fourth proportional to 610,438.20, 915,657.30 and 167,206.20 is: 250,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,438.20 : 915,657.30 = 167,206.20 : x
  2. Step 2: Convert to fraction form
    610,438.20/915,657.30 = 167,206.20/x
  3. Step 3: Cross multiply
    610,438.20x = 915,657.30 × 167,206.20
  4. Step 4: Simplify right side
    610,438.20x = 153,103,577,635.26
  5. Step 5: Solve for x
    x = 153,103,577,635.26/610,438.20
  6. Step 6: Final answer
    x = 250,809.30

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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.