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Finding the Fourth Proportional to 696,176.72, 960,706.52 and 386,077.50

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Solution

The fourth proportional to 696,176.72, 960,706.52 and 386,077.50 is: 532,777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,176.72 : 960,706.52 = 386,077.50 : x
  2. Step 2: Convert to fraction form
    696,176.72/960,706.52 = 386,077.50/x
  3. Step 3: Cross multiply
    696,176.72x = 960,706.52 × 386,077.50
  4. Step 4: Simplify right side
    696,176.72x = 370,907,169,544.91
  5. Step 5: Solve for x
    x = 370,907,169,544.91/696,176.72
  6. Step 6: Final answer
    x = 532,777.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.