Home / 817,187.20-1,223,505.60-416,963.20

Finding the Fourth Proportional to 817,187.20, 1,223,505.60 and 416,963.20

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Solution

The fourth proportional to 817,187.20, 1,223,505.60 and 416,963.20 is: 624,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,187.20 : 1,223,505.60 = 416,963.20 : x
  2. Step 2: Convert to fraction form
    817,187.20/1,223,505.60 = 416,963.20/x
  3. Step 3: Cross multiply
    817,187.20x = 1,223,505.60 × 416,963.20
  4. Step 4: Simplify right side
    817,187.20x = 510,156,810,193.92
  5. Step 5: Solve for x
    x = 510,156,810,193.92/817,187.20
  6. Step 6: Final answer
    x = 624,283.90

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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.