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Finding the Fourth Proportional to 622,821.60, 934,232.40 and 611,011.80

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Solution

The fourth proportional to 622,821.60, 934,232.40 and 611,011.80 is: 916,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,821.60 : 934,232.40 = 611,011.80 : x
  2. Step 2: Convert to fraction form
    622,821.60/934,232.40 = 611,011.80/x
  3. Step 3: Cross multiply
    622,821.60x = 934,232.40 × 611,011.80
  4. Step 4: Simplify right side
    622,821.60x = 570,827,020,342.32
  5. Step 5: Solve for x
    x = 570,827,020,342.32/622,821.60
  6. Step 6: Final answer
    x = 916,517.70

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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.