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Finding the Fourth Proportional to 319,065.72, 440,289.95 and 175,825.77

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Solution

The fourth proportional to 319,065.72, 440,289.95 and 175,825.77 is: 242,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,065.72 : 440,289.95 = 175,825.77 : x
  2. Step 2: Convert to fraction form
    319,065.72/440,289.95 = 175,825.77/x
  3. Step 3: Cross multiply
    319,065.72x = 440,289.95 × 175,825.77
  4. Step 4: Simplify right side
    319,065.72x = 77,414,318,602.88
  5. Step 5: Solve for x
    x = 77,414,318,602.88/319,065.72
  6. Step 6: Final answer
    x = 242,628.13

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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.