Home / 1,126,211.78-1,554,197.34-642,767.19

Finding the Fourth Proportional to 1,126,211.78, 1,554,197.34 and 642,767.19

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Solution

The fourth proportional to 1,126,211.78, 1,554,197.34 and 642,767.19 is: 887,033.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,211.78 : 1,554,197.34 = 642,767.19 : x
  2. Step 2: Convert to fraction form
    1,126,211.78/1,554,197.34 = 642,767.19/x
  3. Step 3: Cross multiply
    1,126,211.78x = 1,554,197.34 × 642,767.19
  4. Step 4: Simplify right side
    1,126,211.78x = 998,987,056,937.28
  5. Step 5: Solve for x
    x = 998,987,056,937.28/1,126,211.78
  6. Step 6: Final answer
    x = 887,033.04

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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.