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Finding the Fourth Proportional to 543,454.40, 815,181.60 and 506,590.40

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Solution

The fourth proportional to 543,454.40, 815,181.60 and 506,590.40 is: 759,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,454.40 : 815,181.60 = 506,590.40 : x
  2. Step 2: Convert to fraction form
    543,454.40/815,181.60 = 506,590.40/x
  3. Step 3: Cross multiply
    543,454.40x = 815,181.60 × 506,590.40
  4. Step 4: Simplify right side
    543,454.40x = 412,963,172,816.64
  5. Step 5: Solve for x
    x = 412,963,172,816.64/543,454.40
  6. Step 6: Final answer
    x = 759,885.60

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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.