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Finding the Fourth Proportional to 816,792, 1,127,171.52 and 454,205.76

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Solution

The fourth proportional to 816,792, 1,127,171.52 and 454,205.76 is: 626,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,792 : 1,127,171.52 = 454,205.76 : x
  2. Step 2: Convert to fraction form
    816,792/1,127,171.52 = 454,205.76/x
  3. Step 3: Cross multiply
    816,792x = 1,127,171.52 × 454,205.76
  4. Step 4: Simplify right side
    816,792x = 511,967,796,891.96
  5. Step 5: Solve for x
    x = 511,967,796,891.96/816,792
  6. Step 6: Final answer
    x = 626,803.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.