Home / 696,003.53-960,552.30-390,131.87

Finding the Fourth Proportional to 696,003.53, 960,552.30 and 390,131.87

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Solution

The fourth proportional to 696,003.53, 960,552.30 and 390,131.87 is: 538,419.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,003.53 : 960,552.30 = 390,131.87 : x
  2. Step 2: Convert to fraction form
    696,003.53/960,552.30 = 390,131.87/x
  3. Step 3: Cross multiply
    696,003.53x = 960,552.30 × 390,131.87
  4. Step 4: Simplify right side
    696,003.53x = 374,742,065,031.80
  5. Step 5: Solve for x
    x = 374,742,065,031.80/696,003.53
  6. Step 6: Final answer
    x = 538,419.78

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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.