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Finding the Fourth Proportional to 319,109.68, 440,362.68 and 175,869.67

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Solution

The fourth proportional to 319,109.68, 440,362.68 and 175,869.67 is: 242,695.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,109.68 : 440,362.68 = 175,869.67 : x
  2. Step 2: Convert to fraction form
    319,109.68/440,362.68 = 175,869.67/x
  3. Step 3: Cross multiply
    319,109.68x = 440,362.68 × 175,869.67
  4. Step 4: Simplify right side
    319,109.68x = 77,446,439,211.92
  5. Step 5: Solve for x
    x = 77,446,439,211.92/319,109.68
  6. Step 6: Final answer
    x = 242,695.36

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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.