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Finding the Fourth Proportional to 592,806.60, 889,209.90 and 380,230.20

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Solution

The fourth proportional to 592,806.60, 889,209.90 and 380,230.20 is: 570,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,806.60 : 889,209.90 = 380,230.20 : x
  2. Step 2: Convert to fraction form
    592,806.60/889,209.90 = 380,230.20/x
  3. Step 3: Cross multiply
    592,806.60x = 889,209.90 × 380,230.20
  4. Step 4: Simplify right side
    592,806.60x = 338,104,458,118.98
  5. Step 5: Solve for x
    x = 338,104,458,118.98/592,806.60
  6. Step 6: Final answer
    x = 570,345.30

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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.