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Finding the Fourth Proportional to 916,680.48, 1,375,058 and 436,661.52

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Solution

The fourth proportional to 916,680.48, 1,375,058 and 436,661.52 is: 655,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,680.48 : 1,375,058 = 436,661.52 : x
  2. Step 2: Convert to fraction form
    916,680.48/1,375,058 = 436,661.52/x
  3. Step 3: Cross multiply
    916,680.48x = 1,375,058 × 436,661.52
  4. Step 4: Simplify right side
    916,680.48x = 600,434,916,368.16
  5. Step 5: Solve for x
    x = 600,434,916,368.16/916,680.48
  6. Step 6: Final answer
    x = 655,010.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.