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Finding the Fourth Proportional to 300,526.32, 414,726.48 and 187,349.52

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Solution

The fourth proportional to 300,526.32, 414,726.48 and 187,349.52 is: 258,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,526.32 : 414,726.48 = 187,349.52 : x
  2. Step 2: Convert to fraction form
    300,526.32/414,726.48 = 187,349.52/x
  3. Step 3: Cross multiply
    300,526.32x = 414,726.48 × 187,349.52
  4. Step 4: Simplify right side
    300,526.32x = 77,698,806,959.29
  5. Step 5: Solve for x
    x = 77,698,806,959.29/300,526.32
  6. Step 6: Final answer
    x = 258,542.44

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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.