Home / 820,857.65-1,232,043.35-416,333.76

Finding the Fourth Proportional to 820,857.65, 1,232,043.35 and 416,333.76

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Solution

The fourth proportional to 820,857.65, 1,232,043.35 and 416,333.76 is: 624,884.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,857.65 : 1,232,043.35 = 416,333.76 : x
  2. Step 2: Convert to fraction form
    820,857.65/1,232,043.35 = 416,333.76/x
  3. Step 3: Cross multiply
    820,857.65x = 1,232,043.35 × 416,333.76
  4. Step 4: Simplify right side
    820,857.65x = 512,941,238,306.83
  5. Step 5: Solve for x
    x = 512,941,238,306.83/820,857.65
  6. Step 6: Final answer
    x = 624,884.52

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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.