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Finding the Fourth Proportional to 543,987.60, 814,368.60 and 404,365.20

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Solution

The fourth proportional to 543,987.60, 814,368.60 and 404,365.20 is: 605,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,987.60 : 814,368.60 = 404,365.20 : x
  2. Step 2: Convert to fraction form
    543,987.60/814,368.60 = 404,365.20/x
  3. Step 3: Cross multiply
    543,987.60x = 814,368.60 × 404,365.20
  4. Step 4: Simplify right side
    543,987.60x = 329,302,321,812.72
  5. Step 5: Solve for x
    x = 329,302,321,812.72/543,987.60
  6. Step 6: Final answer
    x = 605,348.95

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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.