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Finding the Fourth Proportional to 440,017.75, 607,224.51 and 238,813.75

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Solution

The fourth proportional to 440,017.75, 607,224.51 and 238,813.75 is: 329,562.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,017.75 : 607,224.51 = 238,813.75 : x
  2. Step 2: Convert to fraction form
    440,017.75/607,224.51 = 238,813.75/x
  3. Step 3: Cross multiply
    440,017.75x = 607,224.51 × 238,813.75
  4. Step 4: Simplify right side
    440,017.75x = 145,013,562,325.01
  5. Step 5: Solve for x
    x = 145,013,562,325.01/440,017.75
  6. Step 6: Final answer
    x = 329,562.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.