Home / 991,044-1,367,618.40-577,555.20

Finding the Fourth Proportional to 991,044, 1,367,618.40 and 577,555.20

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Solution

The fourth proportional to 991,044, 1,367,618.40 and 577,555.20 is: 797,013.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,044 : 1,367,618.40 = 577,555.20 : x
  2. Step 2: Convert to fraction form
    991,044/1,367,618.40 = 577,555.20/x
  3. Step 3: Cross multiply
    991,044x = 1,367,618.40 × 577,555.20
  4. Step 4: Simplify right side
    991,044x = 789,875,118,535.68
  5. Step 5: Solve for x
    x = 789,875,118,535.68/991,044
  6. Step 6: Final answer
    x = 797,013.17

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