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Finding the Fourth Proportional to 585,045.70, 877,568.55 and 512,728.90

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Solution

The fourth proportional to 585,045.70, 877,568.55 and 512,728.90 is: 769,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,045.70 : 877,568.55 = 512,728.90 : x
  2. Step 2: Convert to fraction form
    585,045.70/877,568.55 = 512,728.90/x
  3. Step 3: Cross multiply
    585,045.70x = 877,568.55 × 512,728.90
  4. Step 4: Simplify right side
    585,045.70x = 449,954,757,316.10
  5. Step 5: Solve for x
    x = 449,954,757,316.10/585,045.70
  6. Step 6: Final answer
    x = 769,093.35

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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.