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Finding the Fourth Proportional to 439,973.76, 607,172.88 and 248,987.10

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Solution

The fourth proportional to 439,973.76, 607,172.88 and 248,987.10 is: 343,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,973.76 : 607,172.88 = 248,987.10 : x
  2. Step 2: Convert to fraction form
    439,973.76/607,172.88 = 248,987.10/x
  3. Step 3: Cross multiply
    439,973.76x = 607,172.88 × 248,987.10
  4. Step 4: Simplify right side
    439,973.76x = 151,178,214,589.85
  5. Step 5: Solve for x
    x = 151,178,214,589.85/439,973.76
  6. Step 6: Final answer
    x = 343,607.34

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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.