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Finding the Fourth Proportional to 622,905.40, 934,358.10 and 581,433.40

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Solution

The fourth proportional to 622,905.40, 934,358.10 and 581,433.40 is: 872,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,905.40 : 934,358.10 = 581,433.40 : x
  2. Step 2: Convert to fraction form
    622,905.40/934,358.10 = 581,433.40/x
  3. Step 3: Cross multiply
    622,905.40x = 934,358.10 × 581,433.40
  4. Step 4: Simplify right side
    622,905.40x = 543,267,006,900.54
  5. Step 5: Solve for x
    x = 543,267,006,900.54/622,905.40
  6. Step 6: Final answer
    x = 872,150.10

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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.