Home / 869,049.40-1,303,136.70-514,172.20

Finding the Fourth Proportional to 869,049.40, 1,303,136.70 and 514,172.20

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Solution

The fourth proportional to 869,049.40, 1,303,136.70 and 514,172.20 is: 770,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,049.40 : 1,303,136.70 = 514,172.20 : x
  2. Step 2: Convert to fraction form
    869,049.40/1,303,136.70 = 514,172.20/x
  3. Step 3: Cross multiply
    869,049.40x = 1,303,136.70 × 514,172.20
  4. Step 4: Simplify right side
    869,049.40x = 670,036,663,939.74
  5. Step 5: Solve for x
    x = 670,036,663,939.74/869,049.40
  6. Step 6: Final answer
    x = 770,999.51

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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.