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Finding the Fourth Proportional to 622,775.80, 934,115.10 and 243,622.90

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Solution

The fourth proportional to 622,775.80, 934,115.10 and 243,622.90 is: 365,415.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,775.80 : 934,115.10 = 243,622.90 : x
  2. Step 2: Convert to fraction form
    622,775.80/934,115.10 = 243,622.90/x
  3. Step 3: Cross multiply
    622,775.80x = 934,115.10 × 243,622.90
  4. Step 4: Simplify right side
    622,775.80x = 227,571,829,595.79
  5. Step 5: Solve for x
    x = 227,571,829,595.79/622,775.80
  6. Step 6: Final answer
    x = 365,415.34

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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.