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Finding the Fourth Proportional to 461,948.40, 692,922.60 and 320,230.80

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Solution

The fourth proportional to 461,948.40, 692,922.60 and 320,230.80 is: 480,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,948.40 : 692,922.60 = 320,230.80 : x
  2. Step 2: Convert to fraction form
    461,948.40/692,922.60 = 320,230.80/x
  3. Step 3: Cross multiply
    461,948.40x = 692,922.60 × 320,230.80
  4. Step 4: Simplify right side
    461,948.40x = 221,895,158,536.08
  5. Step 5: Solve for x
    x = 221,895,158,536.08/461,948.40
  6. Step 6: Final answer
    x = 480,346.20

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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.