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Finding the Fourth Proportional to 417,690.64, 576,275.88 and 236,384.56

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Solution

The fourth proportional to 417,690.64, 576,275.88 and 236,384.56 is: 326,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,690.64 : 576,275.88 = 236,384.56 : x
  2. Step 2: Convert to fraction form
    417,690.64/576,275.88 = 236,384.56/x
  3. Step 3: Cross multiply
    417,690.64x = 576,275.88 × 236,384.56
  4. Step 4: Simplify right side
    417,690.64x = 136,222,720,332.41
  5. Step 5: Solve for x
    x = 136,222,720,332.41/417,690.64
  6. Step 6: Final answer
    x = 326,133.05

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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.