Home / 770,520.20-1,154,225.10-534,129.80

Finding the Fourth Proportional to 770,520.20, 1,154,225.10 and 534,129.80

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Solution

The fourth proportional to 770,520.20, 1,154,225.10 and 534,129.80 is: 800,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,520.20 : 1,154,225.10 = 534,129.80 : x
  2. Step 2: Convert to fraction form
    770,520.20/1,154,225.10 = 534,129.80/x
  3. Step 3: Cross multiply
    770,520.20x = 1,154,225.10 × 534,129.80
  4. Step 4: Simplify right side
    770,520.20x = 616,506,021,817.98
  5. Step 5: Solve for x
    x = 616,506,021,817.98/770,520.20
  6. Step 6: Final answer
    x = 800,116.62

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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.