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Finding the Fourth Proportional to 365,723.10, 547,515.45 and 260,747.10

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Solution

The fourth proportional to 365,723.10, 547,515.45 and 260,747.10 is: 390,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,723.10 : 547,515.45 = 260,747.10 : x
  2. Step 2: Convert to fraction form
    365,723.10/547,515.45 = 260,747.10/x
  3. Step 3: Cross multiply
    365,723.10x = 547,515.45 × 260,747.10
  4. Step 4: Simplify right side
    365,723.10x = 142,763,065,792.70
  5. Step 5: Solve for x
    x = 142,763,065,792.70/365,723.10
  6. Step 6: Final answer
    x = 390,358.35

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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.