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Finding the Fourth Proportional to 805,600.97, 1,208,401.45 and 383,597.45

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Solution

The fourth proportional to 805,600.97, 1,208,401.45 and 383,597.45 is: 575,396.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,600.97 : 1,208,401.45 = 383,597.45 : x
  2. Step 2: Convert to fraction form
    805,600.97/1,208,401.45 = 383,597.45/x
  3. Step 3: Cross multiply
    805,600.97x = 1,208,401.45 × 383,597.45
  4. Step 4: Simplify right side
    805,600.97x = 463,539,714,796.30
  5. Step 5: Solve for x
    x = 463,539,714,796.30/805,600.97
  6. Step 6: Final answer
    x = 575,396.17

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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.