Home / 612,977.10-919,465.65-192,252.30

Finding the Fourth Proportional to 612,977.10, 919,465.65 and 192,252.30

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Solution

The fourth proportional to 612,977.10, 919,465.65 and 192,252.30 is: 288,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,977.10 : 919,465.65 = 192,252.30 : x
  2. Step 2: Convert to fraction form
    612,977.10/919,465.65 = 192,252.30/x
  3. Step 3: Cross multiply
    612,977.10x = 919,465.65 × 192,252.30
  4. Step 4: Simplify right side
    612,977.10x = 176,769,385,983.50
  5. Step 5: Solve for x
    x = 176,769,385,983.50/612,977.10
  6. Step 6: Final answer
    x = 288,378.45

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Similar ratio
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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.