Home / 695,895.30-960,319.86-405,488.73

Finding the Fourth Proportional to 695,895.30, 960,319.86 and 405,488.73

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Solution

The fourth proportional to 695,895.30, 960,319.86 and 405,488.73 is: 559,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,895.30 : 960,319.86 = 405,488.73 : x
  2. Step 2: Convert to fraction form
    695,895.30/960,319.86 = 405,488.73/x
  3. Step 3: Cross multiply
    695,895.30x = 960,319.86 × 405,488.73
  4. Step 4: Simplify right side
    695,895.30x = 389,398,880,425.18
  5. Step 5: Solve for x
    x = 389,398,880,425.18/695,895.30
  6. Step 6: Final answer
    x = 559,565.33

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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.