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Finding the Fourth Proportional to 533,188.72, 735,798.76 and 291,471.40

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Solution

The fourth proportional to 533,188.72, 735,798.76 and 291,471.40 is: 402,229.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,188.72 : 735,798.76 = 291,471.40 : x
  2. Step 2: Convert to fraction form
    533,188.72/735,798.76 = 291,471.40/x
  3. Step 3: Cross multiply
    533,188.72x = 735,798.76 × 291,471.40
  4. Step 4: Simplify right side
    533,188.72x = 214,464,294,695.46
  5. Step 5: Solve for x
    x = 214,464,294,695.46/533,188.72
  6. Step 6: Final answer
    x = 402,229.62

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.