Home / 769,000.20-1,153,500.30-556,423.80

Finding the Fourth Proportional to 769,000.20, 1,153,500.30 and 556,423.80

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Solution

The fourth proportional to 769,000.20, 1,153,500.30 and 556,423.80 is: 834,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,000.20 : 1,153,500.30 = 556,423.80 : x
  2. Step 2: Convert to fraction form
    769,000.20/1,153,500.30 = 556,423.80/x
  3. Step 3: Cross multiply
    769,000.20x = 1,153,500.30 × 556,423.80
  4. Step 4: Simplify right side
    769,000.20x = 641,835,020,227.14
  5. Step 5: Solve for x
    x = 641,835,020,227.14/769,000.20
  6. Step 6: Final answer
    x = 834,635.70

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Half scale
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Double scale
Find fourth proportional to 769,001.20, 1,153,501.80 and 556,424.80
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.