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Finding the Fourth Proportional to 695,878.40, 960,295.86 and 409,416.92

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Solution

The fourth proportional to 695,878.40, 960,295.86 and 409,416.92 is: 564,985.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,878.40 : 960,295.86 = 409,416.92 : x
  2. Step 2: Convert to fraction form
    695,878.40/960,295.86 = 409,416.92/x
  3. Step 3: Cross multiply
    695,878.40x = 960,295.86 × 409,416.92
  4. Step 4: Simplify right side
    695,878.40x = 393,161,373,289.95
  5. Step 5: Solve for x
    x = 393,161,373,289.95/695,878.40
  6. Step 6: Final answer
    x = 564,985.74

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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.