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Finding the Fourth Proportional to 619,062.40, 867,277.85 and 619,062.40

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Solution

The fourth proportional to 619,062.40, 867,277.85 and 619,062.40 is: 867,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,062.40 : 867,277.85 = 619,062.40 : x
  2. Step 2: Convert to fraction form
    619,062.40/867,277.85 = 619,062.40/x
  3. Step 3: Cross multiply
    619,062.40x = 867,277.85 × 619,062.40
  4. Step 4: Simplify right side
    619,062.40x = 536,899,107,287.84
  5. Step 5: Solve for x
    x = 536,899,107,287.84/619,062.40
  6. Step 6: Final answer
    x = 867,277.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.