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Finding the Fourth Proportional to 662,909.14, 994,799.55 and 363,599.50

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Solution

The fourth proportional to 662,909.14, 994,799.55 and 363,599.50 is: 545,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,909.14 : 994,799.55 = 363,599.50 : x
  2. Step 2: Convert to fraction form
    662,909.14/994,799.55 = 363,599.50/x
  3. Step 3: Cross multiply
    662,909.14x = 994,799.55 × 363,599.50
  4. Step 4: Simplify right side
    662,909.14x = 361,708,618,980.23
  5. Step 5: Solve for x
    x = 361,708,618,980.23/662,909.14
  6. Step 6: Final answer
    x = 545,638.30

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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.