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Finding the Fourth Proportional to 610,428.70, 915,643.05 and 167,196.70

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Solution

The fourth proportional to 610,428.70, 915,643.05 and 167,196.70 is: 250,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,428.70 : 915,643.05 = 167,196.70 : x
  2. Step 2: Convert to fraction form
    610,428.70/915,643.05 = 167,196.70/x
  3. Step 3: Cross multiply
    610,428.70x = 915,643.05 × 167,196.70
  4. Step 4: Simplify right side
    610,428.70x = 153,092,496,337.94
  5. Step 5: Solve for x
    x = 153,092,496,337.94/610,428.70
  6. Step 6: Final answer
    x = 250,795.05

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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.