Home / 854,806.40-1,282,209.60-356,105.60

Finding the Fourth Proportional to 854,806.40, 1,282,209.60 and 356,105.60

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Solution

The fourth proportional to 854,806.40, 1,282,209.60 and 356,105.60 is: 534,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,806.40 : 1,282,209.60 = 356,105.60 : x
  2. Step 2: Convert to fraction form
    854,806.40/1,282,209.60 = 356,105.60/x
  3. Step 3: Cross multiply
    854,806.40x = 1,282,209.60 × 356,105.60
  4. Step 4: Simplify right side
    854,806.40x = 456,602,018,933.76
  5. Step 5: Solve for x
    x = 456,602,018,933.76/854,806.40
  6. Step 6: Final answer
    x = 534,158.40

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Double scale
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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.