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Finding the Fourth Proportional to 439,889.50, 607,047.51 and 238,685.50

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Solution

The fourth proportional to 439,889.50, 607,047.51 and 238,685.50 is: 329,385.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,889.50 : 607,047.51 = 238,685.50 : x
  2. Step 2: Convert to fraction form
    439,889.50/607,047.51 = 238,685.50/x
  3. Step 3: Cross multiply
    439,889.50x = 607,047.51 × 238,685.50
  4. Step 4: Simplify right side
    439,889.50x = 144,893,438,448.11
  5. Step 5: Solve for x
    x = 144,893,438,448.11/439,889.50
  6. Step 6: Final answer
    x = 329,385.99

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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.