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Finding the Fourth Proportional to 417,727.94, 576,764.13 and 256,798.74

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Solution

The fourth proportional to 417,727.94, 576,764.13 and 256,798.74 is: 354,566.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,727.94 : 576,764.13 = 256,798.74 : x
  2. Step 2: Convert to fraction form
    417,727.94/576,764.13 = 256,798.74/x
  3. Step 3: Cross multiply
    417,727.94x = 576,764.13 × 256,798.74
  4. Step 4: Simplify right side
    417,727.94x = 148,112,301,861.20
  5. Step 5: Solve for x
    x = 148,112,301,861.20/417,727.94
  6. Step 6: Final answer
    x = 354,566.42

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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.