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Finding the Fourth Proportional to 543,609.60, 813,801.60 and 403,987.20

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Solution

The fourth proportional to 543,609.60, 813,801.60 and 403,987.20 is: 604,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,609.60 : 813,801.60 = 403,987.20 : x
  2. Step 2: Convert to fraction form
    543,609.60/813,801.60 = 403,987.20/x
  3. Step 3: Cross multiply
    543,609.60x = 813,801.60 × 403,987.20
  4. Step 4: Simplify right side
    543,609.60x = 328,765,429,739.52
  5. Step 5: Solve for x
    x = 328,765,429,739.52/543,609.60
  6. Step 6: Final answer
    x = 604,782.24

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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.