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Finding the Fourth Proportional to 656,475.40, 984,713.10 and 558,060.40

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Solution

The fourth proportional to 656,475.40, 984,713.10 and 558,060.40 is: 837,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,475.40 : 984,713.10 = 558,060.40 : x
  2. Step 2: Convert to fraction form
    656,475.40/984,713.10 = 558,060.40/x
  3. Step 3: Cross multiply
    656,475.40x = 984,713.10 × 558,060.40
  4. Step 4: Simplify right side
    656,475.40x = 549,529,386,471.24
  5. Step 5: Solve for x
    x = 549,529,386,471.24/656,475.40
  6. Step 6: Final answer
    x = 837,090.60

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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.