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Finding the Fourth Proportional to 543,627.70, 815,441.55 and 169,602.10

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Solution

The fourth proportional to 543,627.70, 815,441.55 and 169,602.10 is: 254,403.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,627.70 : 815,441.55 = 169,602.10 : x
  2. Step 2: Convert to fraction form
    543,627.70/815,441.55 = 169,602.10/x
  3. Step 3: Cross multiply
    543,627.70x = 815,441.55 × 169,602.10
  4. Step 4: Simplify right side
    543,627.70x = 138,300,599,307.26
  5. Step 5: Solve for x
    x = 138,300,599,307.26/543,627.70
  6. Step 6: Final answer
    x = 254,403.15

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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.