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Finding the Fourth Proportional to 577,413.40, 866,120.10 and 156,741.40

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Solution

The fourth proportional to 577,413.40, 866,120.10 and 156,741.40 is: 235,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,413.40 : 866,120.10 = 156,741.40 : x
  2. Step 2: Convert to fraction form
    577,413.40/866,120.10 = 156,741.40/x
  3. Step 3: Cross multiply
    577,413.40x = 866,120.10 × 156,741.40
  4. Step 4: Simplify right side
    577,413.40x = 135,756,877,042.14
  5. Step 5: Solve for x
    x = 135,756,877,042.14/577,413.40
  6. Step 6: Final answer
    x = 235,112.10

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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.