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Finding the Fourth Proportional to 695,632.79, 959,971.10 and 385,555.14

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Solution

The fourth proportional to 695,632.79, 959,971.10 and 385,555.14 is: 532,064.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,632.79 : 959,971.10 = 385,555.14 : x
  2. Step 2: Convert to fraction form
    695,632.79/959,971.10 = 385,555.14/x
  3. Step 3: Cross multiply
    695,632.79x = 959,971.10 × 385,555.14
  4. Step 4: Simplify right side
    695,632.79x = 370,121,793,358.86
  5. Step 5: Solve for x
    x = 370,121,793,358.86/695,632.79
  6. Step 6: Final answer
    x = 532,064.91

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1.5x scale

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.