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Finding the Fourth Proportional to 619,309.38, 928,965.52 and 170,036.40

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Solution

The fourth proportional to 619,309.38, 928,965.52 and 170,036.40 is: 255,055.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,309.38 : 928,965.52 = 170,036.40 : x
  2. Step 2: Convert to fraction form
    619,309.38/928,965.52 = 170,036.40/x
  3. Step 3: Cross multiply
    619,309.38x = 928,965.52 × 170,036.40
  4. Step 4: Simplify right side
    619,309.38x = 157,957,952,744.93
  5. Step 5: Solve for x
    x = 157,957,952,744.93/619,309.38
  6. Step 6: Final answer
    x = 255,055.00

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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.