Home / 898,008.30-1,347,012.45-661,812.30

Finding the Fourth Proportional to 898,008.30, 1,347,012.45 and 661,812.30

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Solution

The fourth proportional to 898,008.30, 1,347,012.45 and 661,812.30 is: 992,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,008.30 : 1,347,012.45 = 661,812.30 : x
  2. Step 2: Convert to fraction form
    898,008.30/1,347,012.45 = 661,812.30/x
  3. Step 3: Cross multiply
    898,008.30x = 1,347,012.45 × 661,812.30
  4. Step 4: Simplify right side
    898,008.30x = 891,469,407,663.14
  5. Step 5: Solve for x
    x = 891,469,407,663.14/898,008.30
  6. Step 6: Final answer
    x = 992,718.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.