Home / 915,178.20-1,262,930.56-501,712.20

Finding the Fourth Proportional to 915,178.20, 1,262,930.56 and 501,712.20

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Solution

The fourth proportional to 915,178.20, 1,262,930.56 and 501,712.20 is: 692,354.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,178.20 : 1,262,930.56 = 501,712.20 : x
  2. Step 2: Convert to fraction form
    915,178.20/1,262,930.56 = 501,712.20/x
  3. Step 3: Cross multiply
    915,178.20x = 1,262,930.56 × 501,712.20
  4. Step 4: Simplify right side
    915,178.20x = 633,627,669,704.83
  5. Step 5: Solve for x
    x = 633,627,669,704.83/915,178.20
  6. Step 6: Final answer
    x = 692,354.42

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Double scale
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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.