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Finding the Fourth Proportional to 369,560.56, 509,810.23 and 238,693.21

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Solution

The fourth proportional to 369,560.56, 509,810.23 and 238,693.21 is: 329,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,560.56 : 509,810.23 = 238,693.21 : x
  2. Step 2: Convert to fraction form
    369,560.56/509,810.23 = 238,693.21/x
  3. Step 3: Cross multiply
    369,560.56x = 509,810.23 × 238,693.21
  4. Step 4: Simplify right side
    369,560.56x = 121,688,240,289.54
  5. Step 5: Solve for x
    x = 121,688,240,289.54/369,560.56
  6. Step 6: Final answer
    x = 329,278.21

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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.