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Finding the Fourth Proportional to 583,266.30, 874,899.45 and 513,282.30

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Solution

The fourth proportional to 583,266.30, 874,899.45 and 513,282.30 is: 769,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,266.30 : 874,899.45 = 513,282.30 : x
  2. Step 2: Convert to fraction form
    583,266.30/874,899.45 = 513,282.30/x
  3. Step 3: Cross multiply
    583,266.30x = 874,899.45 × 513,282.30
  4. Step 4: Simplify right side
    583,266.30x = 449,070,401,964.74
  5. Step 5: Solve for x
    x = 449,070,401,964.74/583,266.30
  6. Step 6: Final answer
    x = 769,923.45

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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.