Home / 991,146.83-1,367,672.93-549,610.30

Finding the Fourth Proportional to 991,146.83, 1,367,672.93 and 549,610.30

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Solution

The fourth proportional to 991,146.83, 1,367,672.93 and 549,610.30 is: 758,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,146.83 : 1,367,672.93 = 549,610.30 : x
  2. Step 2: Convert to fraction form
    991,146.83/1,367,672.93 = 549,610.30/x
  3. Step 3: Cross multiply
    991,146.83x = 1,367,672.93 × 549,610.30
  4. Step 4: Simplify right side
    991,146.83x = 751,687,129,359.18
  5. Step 5: Solve for x
    x = 751,687,129,359.18/991,146.83
  6. Step 6: Final answer
    x = 758,401.39

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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.