Home / 991,205.10-1,367,778.24-549,693.90

Finding the Fourth Proportional to 991,205.10, 1,367,778.24 and 549,693.90

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Solution

The fourth proportional to 991,205.10, 1,367,778.24 and 549,693.90 is: 758,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,205.10 : 1,367,778.24 = 549,693.90 : x
  2. Step 2: Convert to fraction form
    991,205.10/1,367,778.24 = 549,693.90/x
  3. Step 3: Cross multiply
    991,205.10x = 1,367,778.24 × 549,693.90
  4. Step 4: Simplify right side
    991,205.10x = 751,859,355,080.74
  5. Step 5: Solve for x
    x = 751,859,355,080.74/991,205.10
  6. Step 6: Final answer
    x = 758,530.56

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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.