Home / 286,633.58-430,123.17-99,776.30

Finding the Fourth Proportional to 286,633.58, 430,123.17 and 99,776.30

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Solution

The fourth proportional to 286,633.58, 430,123.17 and 99,776.30 is: 149,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,633.58 : 430,123.17 = 99,776.30 : x
  2. Step 2: Convert to fraction form
    286,633.58/430,123.17 = 99,776.30/x
  3. Step 3: Cross multiply
    286,633.58x = 430,123.17 × 99,776.30
  4. Step 4: Simplify right side
    286,633.58x = 42,916,098,446.87
  5. Step 5: Solve for x
    x = 42,916,098,446.87/286,633.58
  6. Step 6: Final answer
    x = 149,724.60

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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.