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Finding the Fourth Proportional to 319,209.99, 440,511.12 and 175,966.89

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Solution

The fourth proportional to 319,209.99, 440,511.12 and 175,966.89 is: 242,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,209.99 : 440,511.12 = 175,966.89 : x
  2. Step 2: Convert to fraction form
    319,209.99/440,511.12 = 175,966.89/x
  3. Step 3: Cross multiply
    319,209.99x = 440,511.12 × 175,966.89
  4. Step 4: Simplify right side
    319,209.99x = 77,515,371,796.82
  5. Step 5: Solve for x
    x = 77,515,371,796.82/319,209.99
  6. Step 6: Final answer
    x = 242,835.04

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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.