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Finding the Fourth Proportional to 439,886.80, 607,050.84 and 238,682.80

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Solution

The fourth proportional to 439,886.80, 607,050.84 and 238,682.80 is: 329,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,886.80 : 607,050.84 = 238,682.80 : x
  2. Step 2: Convert to fraction form
    439,886.80/607,050.84 = 238,682.80/x
  3. Step 3: Cross multiply
    439,886.80x = 607,050.84 × 238,682.80
  4. Step 4: Simplify right side
    439,886.80x = 144,892,594,233.55
  5. Step 5: Solve for x
    x = 144,892,594,233.55/439,886.80
  6. Step 6: Final answer
    x = 329,386.09

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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.