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Finding the Fourth Proportional to 582,079.70, 873,119.55 and 509,762.90

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Solution

The fourth proportional to 582,079.70, 873,119.55 and 509,762.90 is: 764,644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,079.70 : 873,119.55 = 509,762.90 : x
  2. Step 2: Convert to fraction form
    582,079.70/873,119.55 = 509,762.90/x
  3. Step 3: Cross multiply
    582,079.70x = 873,119.55 × 509,762.90
  4. Step 4: Simplify right side
    582,079.70x = 445,083,953,854.70
  5. Step 5: Solve for x
    x = 445,083,953,854.70/582,079.70
  6. Step 6: Final answer
    x = 764,644.35

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Half scale
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Double scale
Find fourth proportional to 582,080.70, 873,121.05 and 509,763.90
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.