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Finding the Fourth Proportional to 695,901.14, 960,345.39 and 405,685.01

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Solution

The fourth proportional to 695,901.14, 960,345.39 and 405,685.01 is: 559,846.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,901.14 : 960,345.39 = 405,685.01 : x
  2. Step 2: Convert to fraction form
    695,901.14/960,345.39 = 405,685.01/x
  3. Step 3: Cross multiply
    695,901.14x = 960,345.39 × 405,685.01
  4. Step 4: Simplify right side
    695,901.14x = 389,597,729,145.60
  5. Step 5: Solve for x
    x = 389,597,729,145.60/695,901.14
  6. Step 6: Final answer
    x = 559,846.37

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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.