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Finding the Fourth Proportional to 292,095.40, 438,143.10 and 179,902.30

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Solution

The fourth proportional to 292,095.40, 438,143.10 and 179,902.30 is: 269,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,095.40 : 438,143.10 = 179,902.30 : x
  2. Step 2: Convert to fraction form
    292,095.40/438,143.10 = 179,902.30/x
  3. Step 3: Cross multiply
    292,095.40x = 438,143.10 × 179,902.30
  4. Step 4: Simplify right side
    292,095.40x = 78,822,951,419.13
  5. Step 5: Solve for x
    x = 78,822,951,419.13/292,095.40
  6. Step 6: Final answer
    x = 269,853.45

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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.