Home / 1,130,988-1,560,766.68-647,560.56

Finding the Fourth Proportional to 1,130,988, 1,560,766.68 and 647,560.56

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Solution

The fourth proportional to 1,130,988, 1,560,766.68 and 647,560.56 is: 893,635.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,988 : 1,560,766.68 = 647,560.56 : x
  2. Step 2: Convert to fraction form
    1,130,988/1,560,766.68 = 647,560.56/x
  3. Step 3: Cross multiply
    1,130,988x = 1,560,766.68 × 647,560.56
  4. Step 4: Simplify right side
    1,130,988x = 1,010,690,945,330.14
  5. Step 5: Solve for x
    x = 1,010,690,945,330.14/1,130,988
  6. Step 6: Final answer
    x = 893,635.43

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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.