Home / 260,931.39-391,421.52-83,396.13

Finding the Fourth Proportional to 260,931.39, 391,421.52 and 83,396.13

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Solution

The fourth proportional to 260,931.39, 391,421.52 and 83,396.13 is: 125,102.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,931.39 : 391,421.52 = 83,396.13 : x
  2. Step 2: Convert to fraction form
    260,931.39/391,421.52 = 83,396.13/x
  3. Step 3: Cross multiply
    260,931.39x = 391,421.52 × 83,396.13
  4. Step 4: Simplify right side
    260,931.39x = 32,643,039,966.72
  5. Step 5: Solve for x
    x = 32,643,039,966.72/260,931.39
  6. Step 6: Final answer
    x = 125,102.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.