Home / 695,020.57-959,017.27-389,109.84

Finding the Fourth Proportional to 695,020.57, 959,017.27 and 389,109.84

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Solution

The fourth proportional to 695,020.57, 959,017.27 and 389,109.84 is: 536,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,020.57 : 959,017.27 = 389,109.84 : x
  2. Step 2: Convert to fraction form
    695,020.57/959,017.27 = 389,109.84/x
  3. Step 3: Cross multiply
    695,020.57x = 959,017.27 × 389,109.84
  4. Step 4: Simplify right side
    695,020.57x = 373,163,060,064.83
  5. Step 5: Solve for x
    x = 373,163,060,064.83/695,020.57
  6. Step 6: Final answer
    x = 536,909.38

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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.