Home / 854,400.60-1,279,851.30-433,913.40

Finding the Fourth Proportional to 854,400.60, 1,279,851.30 and 433,913.40

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Solution

The fourth proportional to 854,400.60, 1,279,851.30 and 433,913.40 is: 649,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,400.60 : 1,279,851.30 = 433,913.40 : x
  2. Step 2: Convert to fraction form
    854,400.60/1,279,851.30 = 433,913.40/x
  3. Step 3: Cross multiply
    854,400.60x = 1,279,851.30 × 433,913.40
  4. Step 4: Simplify right side
    854,400.60x = 555,344,629,077.42
  5. Step 5: Solve for x
    x = 555,344,629,077.42/854,400.60
  6. Step 6: Final answer
    x = 649,981.55

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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.