Home / 858,803.10-1,288,204.65-433,650.30

Finding the Fourth Proportional to 858,803.10, 1,288,204.65 and 433,650.30

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Solution

The fourth proportional to 858,803.10, 1,288,204.65 and 433,650.30 is: 650,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,803.10 : 1,288,204.65 = 433,650.30 : x
  2. Step 2: Convert to fraction form
    858,803.10/1,288,204.65 = 433,650.30/x
  3. Step 3: Cross multiply
    858,803.10x = 1,288,204.65 × 433,650.30
  4. Step 4: Simplify right side
    858,803.10x = 558,630,332,933.90
  5. Step 5: Solve for x
    x = 558,630,332,933.90/858,803.10
  6. Step 6: Final answer
    x = 650,475.45

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Half scale
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Double scale
Find fourth proportional to 858,804.10, 1,288,206.15 and 433,651.30
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.