Home / 928,686.80-1,393,030.20-298,053.20

Finding the Fourth Proportional to 928,686.80, 1,393,030.20 and 298,053.20

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Solution

The fourth proportional to 928,686.80, 1,393,030.20 and 298,053.20 is: 447,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,686.80 : 1,393,030.20 = 298,053.20 : x
  2. Step 2: Convert to fraction form
    928,686.80/1,393,030.20 = 298,053.20/x
  3. Step 3: Cross multiply
    928,686.80x = 1,393,030.20 × 298,053.20
  4. Step 4: Simplify right side
    928,686.80x = 415,197,108,806.64
  5. Step 5: Solve for x
    x = 415,197,108,806.64/928,686.80
  6. Step 6: Final answer
    x = 447,079.80

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