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Finding the Fourth Proportional to 462,062.76, 692,128.20 and 371,616.63

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Solution

The fourth proportional to 462,062.76, 692,128.20 and 371,616.63 is: 556,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,062.76 : 692,128.20 = 371,616.63 : x
  2. Step 2: Convert to fraction form
    462,062.76/692,128.20 = 371,616.63/x
  3. Step 3: Cross multiply
    462,062.76x = 692,128.20 × 371,616.63
  4. Step 4: Simplify right side
    462,062.76x = 257,206,349,211.97
  5. Step 5: Solve for x
    x = 257,206,349,211.97/462,062.76
  6. Step 6: Final answer
    x = 556,648.08

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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.