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Finding the Fourth Proportional to 623,633.80, 935,450.70 and 614,302.60

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Solution

The fourth proportional to 623,633.80, 935,450.70 and 614,302.60 is: 921,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,633.80 : 935,450.70 = 614,302.60 : x
  2. Step 2: Convert to fraction form
    623,633.80/935,450.70 = 614,302.60/x
  3. Step 3: Cross multiply
    623,633.80x = 935,450.70 × 614,302.60
  4. Step 4: Simplify right side
    623,633.80x = 574,649,797,181.82
  5. Step 5: Solve for x
    x = 574,649,797,181.82/623,633.80
  6. Step 6: Final answer
    x = 921,453.90

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Half scale
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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.