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Finding the Fourth Proportional to 472,079.93, 708,415.16 and 191,597.18

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Solution

The fourth proportional to 472,079.93, 708,415.16 and 191,597.18 is: 287,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,079.93 : 708,415.16 = 191,597.18 : x
  2. Step 2: Convert to fraction form
    472,079.93/708,415.16 = 191,597.18/x
  3. Step 3: Cross multiply
    472,079.93x = 708,415.16 × 191,597.18
  4. Step 4: Simplify right side
    472,079.93x = 135,730,342,425.19
  5. Step 5: Solve for x
    x = 135,730,342,425.19/472,079.93
  6. Step 6: Final answer
    x = 287,515.60

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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.