Home / 692,722.70-1,039,116.45-219,445.10

Finding the Fourth Proportional to 692,722.70, 1,039,116.45 and 219,445.10

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Solution

The fourth proportional to 692,722.70, 1,039,116.45 and 219,445.10 is: 329,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,722.70 : 1,039,116.45 = 219,445.10 : x
  2. Step 2: Convert to fraction form
    692,722.70/1,039,116.45 = 219,445.10/x
  3. Step 3: Cross multiply
    692,722.70x = 1,039,116.45 × 219,445.10
  4. Step 4: Simplify right side
    692,722.70x = 228,029,013,281.90
  5. Step 5: Solve for x
    x = 228,029,013,281.90/692,722.70
  6. Step 6: Final answer
    x = 329,177.91

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Double scale
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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.