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Finding the Fourth Proportional to 440,012.25, 607,216.95 and 238,808.25

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Solution

The fourth proportional to 440,012.25, 607,216.95 and 238,808.25 is: 329,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,012.25 : 607,216.95 = 238,808.25 : x
  2. Step 2: Convert to fraction form
    440,012.25/607,216.95 = 238,808.25/x
  3. Step 3: Cross multiply
    440,012.25x = 607,216.95 × 238,808.25
  4. Step 4: Simplify right side
    440,012.25x = 145,008,417,199.84
  5. Step 5: Solve for x
    x = 145,008,417,199.84/440,012.25
  6. Step 6: Final answer
    x = 329,555.41

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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.