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Finding the Fourth Proportional to 472,593.30, 708,889.95 and 260,016.90

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Solution

The fourth proportional to 472,593.30, 708,889.95 and 260,016.90 is: 390,025.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,593.30 : 708,889.95 = 260,016.90 : x
  2. Step 2: Convert to fraction form
    472,593.30/708,889.95 = 260,016.90/x
  3. Step 3: Cross multiply
    472,593.30x = 708,889.95 × 260,016.90
  4. Step 4: Simplify right side
    472,593.30x = 184,323,367,240.16
  5. Step 5: Solve for x
    x = 184,323,367,240.16/472,593.30
  6. Step 6: Final answer
    x = 390,025.35

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Double scale
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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.