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Finding the Fourth Proportional to 965,501.10, 1,448,251.65 and 255,600.90

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Solution

The fourth proportional to 965,501.10, 1,448,251.65 and 255,600.90 is: 383,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,501.10 : 1,448,251.65 = 255,600.90 : x
  2. Step 2: Convert to fraction form
    965,501.10/1,448,251.65 = 255,600.90/x
  3. Step 3: Cross multiply
    965,501.10x = 1,448,251.65 × 255,600.90
  4. Step 4: Simplify right side
    965,501.10x = 370,174,425,166.49
  5. Step 5: Solve for x
    x = 370,174,425,166.49/965,501.10
  6. Step 6: Final answer
    x = 383,401.35

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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.