Home / 693,447.36-956,976.30-391,641.36

Finding the Fourth Proportional to 693,447.36, 956,976.30 and 391,641.36

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Solution

The fourth proportional to 693,447.36, 956,976.30 and 391,641.36 is: 540,475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,447.36 : 956,976.30 = 391,641.36 : x
  2. Step 2: Convert to fraction form
    693,447.36/956,976.30 = 391,641.36/x
  3. Step 3: Cross multiply
    693,447.36x = 956,976.30 × 391,641.36
  4. Step 4: Simplify right side
    693,447.36x = 374,791,499,619.77
  5. Step 5: Solve for x
    x = 374,791,499,619.77/693,447.36
  6. Step 6: Final answer
    x = 540,475.78

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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.