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Finding the Fourth Proportional to 695,885.67, 960,273.69 and 385,785.18

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Solution

The fourth proportional to 695,885.67, 960,273.69 and 385,785.18 is: 532,356.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,885.67 : 960,273.69 = 385,785.18 : x
  2. Step 2: Convert to fraction form
    695,885.67/960,273.69 = 385,785.18/x
  3. Step 3: Cross multiply
    695,885.67x = 960,273.69 × 385,785.18
  4. Step 4: Simplify right side
    695,885.67x = 370,459,358,345.91
  5. Step 5: Solve for x
    x = 370,459,358,345.91/695,885.67
  6. Step 6: Final answer
    x = 532,356.64

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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.