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Finding the Fourth Proportional to 659,676.40, 925,413.20 and 659,676.40

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Solution

The fourth proportional to 659,676.40, 925,413.20 and 659,676.40 is: 925,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,676.40 : 925,413.20 = 659,676.40 : x
  2. Step 2: Convert to fraction form
    659,676.40/925,413.20 = 659,676.40/x
  3. Step 3: Cross multiply
    659,676.40x = 925,413.20 × 659,676.40
  4. Step 4: Simplify right side
    659,676.40x = 610,473,248,288.48
  5. Step 5: Solve for x
    x = 610,473,248,288.48/659,676.40
  6. Step 6: Final answer
    x = 925,413.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.