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Finding the Fourth Proportional to 416,398.73, 574,629.59 and 225,412.07

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Solution

The fourth proportional to 416,398.73, 574,629.59 and 225,412.07 is: 311,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,398.73 : 574,629.59 = 225,412.07 : x
  2. Step 2: Convert to fraction form
    416,398.73/574,629.59 = 225,412.07/x
  3. Step 3: Cross multiply
    416,398.73x = 574,629.59 × 225,412.07
  4. Step 4: Simplify right side
    416,398.73x = 129,528,443,055.53
  5. Step 5: Solve for x
    x = 129,528,443,055.53/416,398.73
  6. Step 6: Final answer
    x = 311,068.30

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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.