Home / 854,205.60-1,279,558.80-433,718.40

Finding the Fourth Proportional to 854,205.60, 1,279,558.80 and 433,718.40

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Solution

The fourth proportional to 854,205.60, 1,279,558.80 and 433,718.40 is: 649,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,205.60 : 1,279,558.80 = 433,718.40 : x
  2. Step 2: Convert to fraction form
    854,205.60/1,279,558.80 = 433,718.40/x
  3. Step 3: Cross multiply
    854,205.60x = 1,279,558.80 × 433,718.40
  4. Step 4: Simplify right side
    854,205.60x = 554,968,195,441.92
  5. Step 5: Solve for x
    x = 554,968,195,441.92/854,205.60
  6. Step 6: Final answer
    x = 649,689.25

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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.