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Finding the Fourth Proportional to 485,058.30, 727,587.45 and 366,960.30

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Solution

The fourth proportional to 485,058.30, 727,587.45 and 366,960.30 is: 550,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,058.30 : 727,587.45 = 366,960.30 : x
  2. Step 2: Convert to fraction form
    485,058.30/727,587.45 = 366,960.30/x
  3. Step 3: Cross multiply
    485,058.30x = 727,587.45 × 366,960.30
  4. Step 4: Simplify right side
    485,058.30x = 266,995,708,928.24
  5. Step 5: Solve for x
    x = 266,995,708,928.24/485,058.30
  6. Step 6: Final answer
    x = 550,440.45

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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.