Home / 778,940.90-1,168,411.35-443,017.70

Finding the Fourth Proportional to 778,940.90, 1,168,411.35 and 443,017.70

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Solution

The fourth proportional to 778,940.90, 1,168,411.35 and 443,017.70 is: 664,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,940.90 : 1,168,411.35 = 443,017.70 : x
  2. Step 2: Convert to fraction form
    778,940.90/1,168,411.35 = 443,017.70/x
  3. Step 3: Cross multiply
    778,940.90x = 1,168,411.35 × 443,017.70
  4. Step 4: Simplify right side
    778,940.90x = 517,626,908,930.90
  5. Step 5: Solve for x
    x = 517,626,908,930.90/778,940.90
  6. Step 6: Final answer
    x = 664,526.55

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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.