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Finding the Fourth Proportional to 619,335.10, 929,029.65 and 170,044.30

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Solution

The fourth proportional to 619,335.10, 929,029.65 and 170,044.30 is: 255,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,335.10 : 929,029.65 = 170,044.30 : x
  2. Step 2: Convert to fraction form
    619,335.10/929,029.65 = 170,044.30/x
  3. Step 3: Cross multiply
    619,335.10x = 929,029.65 × 170,044.30
  4. Step 4: Simplify right side
    619,335.10x = 157,976,196,513.50
  5. Step 5: Solve for x
    x = 157,976,196,513.50/619,335.10
  6. Step 6: Final answer
    x = 255,073.86

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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.