Home / 807,631.60-1,211,447.40-555,689.20

Finding the Fourth Proportional to 807,631.60, 1,211,447.40 and 555,689.20

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Solution

The fourth proportional to 807,631.60, 1,211,447.40 and 555,689.20 is: 833,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,631.60 : 1,211,447.40 = 555,689.20 : x
  2. Step 2: Convert to fraction form
    807,631.60/1,211,447.40 = 555,689.20/x
  3. Step 3: Cross multiply
    807,631.60x = 1,211,447.40 × 555,689.20
  4. Step 4: Simplify right side
    807,631.60x = 673,188,236,548.08
  5. Step 5: Solve for x
    x = 673,188,236,548.08/807,631.60
  6. Step 6: Final answer
    x = 833,533.80

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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.