Home / 778,923.90-1,168,385.85-443,000.70

Finding the Fourth Proportional to 778,923.90, 1,168,385.85 and 443,000.70

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Solution

The fourth proportional to 778,923.90, 1,168,385.85 and 443,000.70 is: 664,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,923.90 : 1,168,385.85 = 443,000.70 : x
  2. Step 2: Convert to fraction form
    778,923.90/1,168,385.85 = 443,000.70/x
  3. Step 3: Cross multiply
    778,923.90x = 1,168,385.85 × 443,000.70
  4. Step 4: Simplify right side
    778,923.90x = 517,595,749,420.10
  5. Step 5: Solve for x
    x = 517,595,749,420.10/778,923.90
  6. Step 6: Final answer
    x = 664,501.05

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Half scale
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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.