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Finding the Fourth Proportional to 416,690.65, 575,127.45 and 235,507.68

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Solution

The fourth proportional to 416,690.65, 575,127.45 and 235,507.68 is: 325,053.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,690.65 : 575,127.45 = 235,507.68 : x
  2. Step 2: Convert to fraction form
    416,690.65/575,127.45 = 235,507.68/x
  3. Step 3: Cross multiply
    416,690.65x = 575,127.45 × 235,507.68
  4. Step 4: Simplify right side
    416,690.65x = 135,446,928,578.18
  5. Step 5: Solve for x
    x = 135,446,928,578.18/416,690.65
  6. Step 6: Final answer
    x = 325,053.92

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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.