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Finding the Fourth Proportional to 417,302.66, 575,870.85 and 236,007.78

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Solution

The fourth proportional to 417,302.66, 575,870.85 and 236,007.78 is: 325,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,302.66 : 575,870.85 = 236,007.78 : x
  2. Step 2: Convert to fraction form
    417,302.66/575,870.85 = 236,007.78/x
  3. Step 3: Cross multiply
    417,302.66x = 575,870.85 × 236,007.78
  4. Step 4: Simplify right side
    417,302.66x = 135,910,000,875.21
  5. Step 5: Solve for x
    x = 135,910,000,875.21/417,302.66
  6. Step 6: Final answer
    x = 325,686.88

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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.