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Finding the Fourth Proportional to 605,967.40, 836,763.78 and 380,002.60

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Solution

The fourth proportional to 605,967.40, 836,763.78 and 380,002.60 is: 524,735.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,967.40 : 836,763.78 = 380,002.60 : x
  2. Step 2: Convert to fraction form
    605,967.40/836,763.78 = 380,002.60/x
  3. Step 3: Cross multiply
    605,967.40x = 836,763.78 × 380,002.60
  4. Step 4: Simplify right side
    605,967.40x = 317,972,411,985.83
  5. Step 5: Solve for x
    x = 317,972,411,985.83/605,967.40
  6. Step 6: Final answer
    x = 524,735.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.