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Finding the Fourth Proportional to 629,907.60, 944,861.40 and 605,413.20

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Solution

The fourth proportional to 629,907.60, 944,861.40 and 605,413.20 is: 908,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,907.60 : 944,861.40 = 605,413.20 : x
  2. Step 2: Convert to fraction form
    629,907.60/944,861.40 = 605,413.20/x
  3. Step 3: Cross multiply
    629,907.60x = 944,861.40 × 605,413.20
  4. Step 4: Simplify right side
    629,907.60x = 572,031,563,730.48
  5. Step 5: Solve for x
    x = 572,031,563,730.48/629,907.60
  6. Step 6: Final answer
    x = 908,119.80

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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.