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Finding the Fourth Proportional to 623,813.80, 934,338.30 and 483,116.20

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Solution

The fourth proportional to 623,813.80, 934,338.30 and 483,116.20 is: 723,603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,813.80 : 934,338.30 = 483,116.20 : x
  2. Step 2: Convert to fraction form
    623,813.80/934,338.30 = 483,116.20/x
  3. Step 3: Cross multiply
    623,813.80x = 934,338.30 × 483,116.20
  4. Step 4: Simplify right side
    623,813.80x = 451,393,969,010.46
  5. Step 5: Solve for x
    x = 451,393,969,010.46/623,813.80
  6. Step 6: Final answer
    x = 723,603.69

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Double scale
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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.