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Finding the Fourth Proportional to 334,038.30, 501,057.45 and 84,720.30

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Solution

The fourth proportional to 334,038.30, 501,057.45 and 84,720.30 is: 127,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,038.30 : 501,057.45 = 84,720.30 : x
  2. Step 2: Convert to fraction form
    334,038.30/501,057.45 = 84,720.30/x
  3. Step 3: Cross multiply
    334,038.30x = 501,057.45 × 84,720.30
  4. Step 4: Simplify right side
    334,038.30x = 42,449,737,481.24
  5. Step 5: Solve for x
    x = 42,449,737,481.24/334,038.30
  6. Step 6: Final answer
    x = 127,080.45

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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.