Home / 384,631.38-530,788.38-212,560.92

Finding the Fourth Proportional to 384,631.38, 530,788.38 and 212,560.92

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Solution

The fourth proportional to 384,631.38, 530,788.38 and 212,560.92 is: 293,332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,631.38 : 530,788.38 = 212,560.92 : x
  2. Step 2: Convert to fraction form
    384,631.38/530,788.38 = 212,560.92/x
  3. Step 3: Cross multiply
    384,631.38x = 530,788.38 × 212,560.92
  4. Step 4: Simplify right side
    384,631.38x = 112,824,866,378.11
  5. Step 5: Solve for x
    x = 112,824,866,378.11/384,631.38
  6. Step 6: Final answer
    x = 293,332.45

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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.