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Finding the Fourth Proportional to 439,987.68, 607,180.86 and 238,783.68

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Solution

The fourth proportional to 439,987.68, 607,180.86 and 238,783.68 is: 329,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,987.68 : 607,180.86 = 238,783.68 : x
  2. Step 2: Convert to fraction form
    439,987.68/607,180.86 = 238,783.68/x
  3. Step 3: Cross multiply
    439,987.68x = 607,180.86 × 238,783.68
  4. Step 4: Simplify right side
    439,987.68x = 144,984,880,176.37
  5. Step 5: Solve for x
    x = 144,984,880,176.37/439,987.68
  6. Step 6: Final answer
    x = 329,520.32

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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.