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Finding the Fourth Proportional to 695,901.64, 960,346.08 and 405,685.52

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Solution

The fourth proportional to 695,901.64, 960,346.08 and 405,685.52 is: 559,847.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,901.64 : 960,346.08 = 405,685.52 : x
  2. Step 2: Convert to fraction form
    695,901.64/960,346.08 = 405,685.52/x
  3. Step 3: Cross multiply
    695,901.64x = 960,346.08 × 405,685.52
  4. Step 4: Simplify right side
    695,901.64x = 389,598,498,844.76
  5. Step 5: Solve for x
    x = 389,598,498,844.76/695,901.64
  6. Step 6: Final answer
    x = 559,847.08

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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.