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Finding the Fourth Proportional to 419,001.66, 578,235.41 and 237,721.23

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Solution

The fourth proportional to 419,001.66, 578,235.41 and 237,721.23 is: 328,062.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,001.66 : 578,235.41 = 237,721.23 : x
  2. Step 2: Convert to fraction form
    419,001.66/578,235.41 = 237,721.23/x
  3. Step 3: Cross multiply
    419,001.66x = 578,235.41 × 237,721.23
  4. Step 4: Simplify right side
    419,001.66x = 137,458,832,597.60
  5. Step 5: Solve for x
    x = 137,458,832,597.60/419,001.66
  6. Step 6: Final answer
    x = 328,062.74

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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.