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Finding the Fourth Proportional to 586,942.40, 880,413.60 and 143,710.40

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Solution

The fourth proportional to 586,942.40, 880,413.60 and 143,710.40 is: 215,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,942.40 : 880,413.60 = 143,710.40 : x
  2. Step 2: Convert to fraction form
    586,942.40/880,413.60 = 143,710.40/x
  3. Step 3: Cross multiply
    586,942.40x = 880,413.60 × 143,710.40
  4. Step 4: Simplify right side
    586,942.40x = 126,524,590,621.44
  5. Step 5: Solve for x
    x = 126,524,590,621.44/586,942.40
  6. Step 6: Final answer
    x = 215,565.60

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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.