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Finding the Fourth Proportional to 537,895.80, 806,843.70 and 163,918.20

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Solution

The fourth proportional to 537,895.80, 806,843.70 and 163,918.20 is: 245,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,895.80 : 806,843.70 = 163,918.20 : x
  2. Step 2: Convert to fraction form
    537,895.80/806,843.70 = 163,918.20/x
  3. Step 3: Cross multiply
    537,895.80x = 806,843.70 × 163,918.20
  4. Step 4: Simplify right side
    537,895.80x = 132,256,366,985.34
  5. Step 5: Solve for x
    x = 132,256,366,985.34/537,895.80
  6. Step 6: Final answer
    x = 245,877.30

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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.