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Finding the Fourth Proportional to 607,280.84, 910,311.63 and 207,648.31

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Solution

The fourth proportional to 607,280.84, 910,311.63 and 207,648.31 is: 311,264.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,280.84 : 910,311.63 = 207,648.31 : x
  2. Step 2: Convert to fraction form
    607,280.84/910,311.63 = 207,648.31/x
  3. Step 3: Cross multiply
    607,280.84x = 910,311.63 × 207,648.31
  4. Step 4: Simplify right side
    607,280.84x = 189,024,667,510.41
  5. Step 5: Solve for x
    x = 189,024,667,510.41/607,280.84
  6. Step 6: Final answer
    x = 311,264.01

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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.