Home / 286,715.40-430,127.55-94,601.49

Finding the Fourth Proportional to 286,715.40, 430,127.55 and 94,601.49

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Solution

The fourth proportional to 286,715.40, 430,127.55 and 94,601.49 is: 141,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,715.40 : 430,127.55 = 94,601.49 : x
  2. Step 2: Convert to fraction form
    286,715.40/430,127.55 = 94,601.49/x
  3. Step 3: Cross multiply
    286,715.40x = 430,127.55 × 94,601.49
  4. Step 4: Simplify right side
    286,715.40x = 40,690,707,120.05
  5. Step 5: Solve for x
    x = 40,690,707,120.05/286,715.40
  6. Step 6: Final answer
    x = 141,920.20

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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.