Home / 858,407.10-1,288,193.85-479,327.10

Finding the Fourth Proportional to 858,407.10, 1,288,193.85 and 479,327.10

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Solution

The fourth proportional to 858,407.10, 1,288,193.85 and 479,327.10 is: 719,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,407.10 : 1,288,193.85 = 479,327.10 : x
  2. Step 2: Convert to fraction form
    858,407.10/1,288,193.85 = 479,327.10/x
  3. Step 3: Cross multiply
    858,407.10x = 1,288,193.85 × 479,327.10
  4. Step 4: Simplify right side
    858,407.10x = 617,466,222,358.34
  5. Step 5: Solve for x
    x = 617,466,222,358.34/858,407.10
  6. Step 6: Final answer
    x = 719,316.30

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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.