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Finding the Fourth Proportional to 619,397.78, 929,094.78 and 170,119.04

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Solution

The fourth proportional to 619,397.78, 929,094.78 and 170,119.04 is: 255,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,397.78 : 929,094.78 = 170,119.04 : x
  2. Step 2: Convert to fraction form
    619,397.78/929,094.78 = 170,119.04/x
  3. Step 3: Cross multiply
    619,397.78x = 929,094.78 × 170,119.04
  4. Step 4: Simplify right side
    619,397.78x = 158,056,712,042.61
  5. Step 5: Solve for x
    x = 158,056,712,042.61/619,397.78
  6. Step 6: Final answer
    x = 255,178.04

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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.