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Finding the Fourth Proportional to 710,961.48, 981,138.48 and 424,506.60

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Solution

The fourth proportional to 710,961.48, 981,138.48 and 424,506.60 is: 585,826.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,961.48 : 981,138.48 = 424,506.60 : x
  2. Step 2: Convert to fraction form
    710,961.48/981,138.48 = 424,506.60/x
  3. Step 3: Cross multiply
    710,961.48x = 981,138.48 × 424,506.60
  4. Step 4: Simplify right side
    710,961.48x = 416,499,760,273.97
  5. Step 5: Solve for x
    x = 416,499,760,273.97/710,961.48
  6. Step 6: Final answer
    x = 585,826.06

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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.