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Finding the Fourth Proportional to 622,353.60, 934,221.60 and 385,963.20

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Solution

The fourth proportional to 622,353.60, 934,221.60 and 385,963.20 is: 579,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,353.60 : 934,221.60 = 385,963.20 : x
  2. Step 2: Convert to fraction form
    622,353.60/934,221.60 = 385,963.20/x
  3. Step 3: Cross multiply
    622,353.60x = 934,221.60 × 385,963.20
  4. Step 4: Simplify right side
    622,353.60x = 360,575,158,245.12
  5. Step 5: Solve for x
    x = 360,575,158,245.12/622,353.60
  6. Step 6: Final answer
    x = 579,373.46

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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.