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Finding the Fourth Proportional to 334,238.70, 501,387.21 and 123,878.46

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Solution

The fourth proportional to 334,238.70, 501,387.21 and 123,878.46 is: 185,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,238.70 : 501,387.21 = 123,878.46 : x
  2. Step 2: Convert to fraction form
    334,238.70/501,387.21 = 123,878.46/x
  3. Step 3: Cross multiply
    334,238.70x = 501,387.21 × 123,878.46
  4. Step 4: Simplify right side
    334,238.70x = 62,111,075,438.50
  5. Step 5: Solve for x
    x = 62,111,075,438.50/334,238.70
  6. Step 6: Final answer
    x = 185,828.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.