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Finding the Fourth Proportional to 439,594.84, 606,641.22 and 238,390.84

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Solution

The fourth proportional to 439,594.84, 606,641.22 and 238,390.84 is: 328,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,594.84 : 606,641.22 = 238,390.84 : x
  2. Step 2: Convert to fraction form
    439,594.84/606,641.22 = 238,390.84/x
  3. Step 3: Cross multiply
    439,594.84x = 606,641.22 × 238,390.84
  4. Step 4: Simplify right side
    439,594.84x = 144,617,710,014.43
  5. Step 5: Solve for x
    x = 144,617,710,014.43/439,594.84
  6. Step 6: Final answer
    x = 328,979.54

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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.