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Finding the Fourth Proportional to 695,816.57, 960,210.59 and 409,355.08

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Solution

The fourth proportional to 695,816.57, 960,210.59 and 409,355.08 is: 564,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,816.57 : 960,210.59 = 409,355.08 : x
  2. Step 2: Convert to fraction form
    695,816.57/960,210.59 = 409,355.08/x
  3. Step 3: Cross multiply
    695,816.57x = 960,210.59 × 409,355.08
  4. Step 4: Simplify right side
    695,816.57x = 393,067,078,439.00
  5. Step 5: Solve for x
    x = 393,067,078,439.00/695,816.57
  6. Step 6: Final answer
    x = 564,900.43

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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.