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Finding the Fourth Proportional to 235,700.19, 325,428.99 and 220,642.70

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Solution

The fourth proportional to 235,700.19, 325,428.99 and 220,642.70 is: 304,639.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,700.19 : 325,428.99 = 220,642.70 : x
  2. Step 2: Convert to fraction form
    235,700.19/325,428.99 = 220,642.70/x
  3. Step 3: Cross multiply
    235,700.19x = 325,428.99 × 220,642.70
  4. Step 4: Simplify right side
    235,700.19x = 71,803,529,384.73
  5. Step 5: Solve for x
    x = 71,803,529,384.73/235,700.19
  6. Step 6: Final answer
    x = 304,639.25

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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.