Home / 783,423.40-1,175,135.10-192,447.40

Finding the Fourth Proportional to 783,423.40, 1,175,135.10 and 192,447.40

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Solution

The fourth proportional to 783,423.40, 1,175,135.10 and 192,447.40 is: 288,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,423.40 : 1,175,135.10 = 192,447.40 : x
  2. Step 2: Convert to fraction form
    783,423.40/1,175,135.10 = 192,447.40/x
  3. Step 3: Cross multiply
    783,423.40x = 1,175,135.10 × 192,447.40
  4. Step 4: Simplify right side
    783,423.40x = 226,151,694,643.74
  5. Step 5: Solve for x
    x = 226,151,694,643.74/783,423.40
  6. Step 6: Final answer
    x = 288,671.10

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Double scale
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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.