Home / 879,424.20-1,319,136.30-574,993.80

Finding the Fourth Proportional to 879,424.20, 1,319,136.30 and 574,993.80

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Solution

The fourth proportional to 879,424.20, 1,319,136.30 and 574,993.80 is: 862,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,424.20 : 1,319,136.30 = 574,993.80 : x
  2. Step 2: Convert to fraction form
    879,424.20/1,319,136.30 = 574,993.80/x
  3. Step 3: Cross multiply
    879,424.20x = 1,319,136.30 × 574,993.80
  4. Step 4: Simplify right side
    879,424.20x = 758,495,193,854.94
  5. Step 5: Solve for x
    x = 758,495,193,854.94/879,424.20
  6. Step 6: Final answer
    x = 862,490.70

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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.