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Finding the Fourth Proportional to 416,681.39, 575,020.35 and 225,694.84

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Solution

The fourth proportional to 416,681.39, 575,020.35 and 225,694.84 is: 311,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,681.39 : 575,020.35 = 225,694.84 : x
  2. Step 2: Convert to fraction form
    416,681.39/575,020.35 = 225,694.84/x
  3. Step 3: Cross multiply
    416,681.39x = 575,020.35 × 225,694.84
  4. Step 4: Simplify right side
    416,681.39x = 129,779,125,889.99
  5. Step 5: Solve for x
    x = 129,779,125,889.99/416,681.39
  6. Step 6: Final answer
    x = 311,458.90

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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.