Home / 947,040.10-1,306,946.73-517,360.30

Finding the Fourth Proportional to 947,040.10, 1,306,946.73 and 517,360.30

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Solution

The fourth proportional to 947,040.10, 1,306,946.73 and 517,360.30 is: 713,974.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,040.10 : 1,306,946.73 = 517,360.30 : x
  2. Step 2: Convert to fraction form
    947,040.10/1,306,946.73 = 517,360.30/x
  3. Step 3: Cross multiply
    947,040.10x = 1,306,946.73 × 517,360.30
  4. Step 4: Simplify right side
    947,040.10x = 676,162,352,316.82
  5. Step 5: Solve for x
    x = 676,162,352,316.82/947,040.10
  6. Step 6: Final answer
    x = 713,974.36

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Double scale
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Similar ratio
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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.