Home / 661,572.36-913,174.56-492,036.12

Finding the Fourth Proportional to 661,572.36, 913,174.56 and 492,036.12

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Solution

The fourth proportional to 661,572.36, 913,174.56 and 492,036.12 is: 679,162.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,572.36 : 913,174.56 = 492,036.12 : x
  2. Step 2: Convert to fraction form
    661,572.36/913,174.56 = 492,036.12/x
  3. Step 3: Cross multiply
    661,572.36x = 913,174.56 × 492,036.12
  4. Step 4: Simplify right side
    661,572.36x = 449,314,867,385.11
  5. Step 5: Solve for x
    x = 449,314,867,385.11/661,572.36
  6. Step 6: Final answer
    x = 679,162.09

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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.