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Finding the Fourth Proportional to 623,486.80, 935,230.20 and 224,140.60

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Solution

The fourth proportional to 623,486.80, 935,230.20 and 224,140.60 is: 336,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,486.80 : 935,230.20 = 224,140.60 : x
  2. Step 2: Convert to fraction form
    623,486.80/935,230.20 = 224,140.60/x
  3. Step 3: Cross multiply
    623,486.80x = 935,230.20 × 224,140.60
  4. Step 4: Simplify right side
    623,486.80x = 209,623,058,166.12
  5. Step 5: Solve for x
    x = 209,623,058,166.12/623,486.80
  6. Step 6: Final answer
    x = 336,210.90

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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.