Home / 289,106.30-433,700.76-89,443.73

Finding the Fourth Proportional to 289,106.30, 433,700.76 and 89,443.73

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Solution

The fourth proportional to 289,106.30, 433,700.76 and 89,443.73 is: 134,178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,106.30 : 433,700.76 = 89,443.73 : x
  2. Step 2: Convert to fraction form
    289,106.30/433,700.76 = 89,443.73/x
  3. Step 3: Cross multiply
    289,106.30x = 433,700.76 × 89,443.73
  4. Step 4: Simplify right side
    289,106.30x = 38,791,813,678.23
  5. Step 5: Solve for x
    x = 38,791,813,678.23/289,106.30
  6. Step 6: Final answer
    x = 134,178.38

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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.