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Finding the Fourth Proportional to 419,543.15, 578,952.44 and 256,472.68

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Solution

The fourth proportional to 419,543.15, 578,952.44 and 256,472.68 is: 353,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,543.15 : 578,952.44 = 256,472.68 : x
  2. Step 2: Convert to fraction form
    419,543.15/578,952.44 = 256,472.68/x
  3. Step 3: Cross multiply
    419,543.15x = 578,952.44 × 256,472.68
  4. Step 4: Simplify right side
    419,543.15x = 148,485,482,475.57
  5. Step 5: Solve for x
    x = 148,485,482,475.57/419,543.15
  6. Step 6: Final answer
    x = 353,921.84

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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.