Home / 874,857.60-1,312,286.40-609,436.80

Finding the Fourth Proportional to 874,857.60, 1,312,286.40 and 609,436.80

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Solution

The fourth proportional to 874,857.60, 1,312,286.40 and 609,436.80 is: 914,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,857.60 : 1,312,286.40 = 609,436.80 : x
  2. Step 2: Convert to fraction form
    874,857.60/1,312,286.40 = 609,436.80/x
  3. Step 3: Cross multiply
    874,857.60x = 1,312,286.40 × 609,436.80
  4. Step 4: Simplify right side
    874,857.60x = 799,755,624,299.52
  5. Step 5: Solve for x
    x = 799,755,624,299.52/874,857.60
  6. Step 6: Final answer
    x = 914,155.20

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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.