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Finding the Fourth Proportional to 543,456.40, 815,184.60 and 506,592.40

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Solution

The fourth proportional to 543,456.40, 815,184.60 and 506,592.40 is: 759,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,456.40 : 815,184.60 = 506,592.40 : x
  2. Step 2: Convert to fraction form
    543,456.40/815,184.60 = 506,592.40/x
  3. Step 3: Cross multiply
    543,456.40x = 815,184.60 × 506,592.40
  4. Step 4: Simplify right side
    543,456.40x = 412,966,322,957.04
  5. Step 5: Solve for x
    x = 412,966,322,957.04/543,456.40
  6. Step 6: Final answer
    x = 759,888.60

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Half scale
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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.