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Finding the Fourth Proportional to 419,007.19, 578,243.04 and 237,726.76

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Solution

The fourth proportional to 419,007.19, 578,243.04 and 237,726.76 is: 328,070.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,007.19 : 578,243.04 = 237,726.76 : x
  2. Step 2: Convert to fraction form
    419,007.19/578,243.04 = 237,726.76/x
  3. Step 3: Cross multiply
    419,007.19x = 578,243.04 × 237,726.76
  4. Step 4: Simplify right side
    419,007.19x = 137,463,845,560.29
  5. Step 5: Solve for x
    x = 137,463,845,560.29/419,007.19
  6. Step 6: Final answer
    x = 328,070.37

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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.