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Finding the Fourth Proportional to 619,061.90, 867,277.15 and 619,061.90

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Solution

The fourth proportional to 619,061.90, 867,277.15 and 619,061.90 is: 867,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,061.90 : 867,277.15 = 619,061.90 : x
  2. Step 2: Convert to fraction form
    619,061.90/867,277.15 = 619,061.90/x
  3. Step 3: Cross multiply
    619,061.90x = 867,277.15 × 619,061.90
  4. Step 4: Simplify right side
    619,061.90x = 536,898,240,305.59
  5. Step 5: Solve for x
    x = 536,898,240,305.59/619,061.90
  6. Step 6: Final answer
    x = 867,277.15

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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.