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Finding the Fourth Proportional to 319,239.72, 440,553.80 and 176,004.89

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Solution

The fourth proportional to 319,239.72, 440,553.80 and 176,004.89 is: 242,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,239.72 : 440,553.80 = 176,004.89 : x
  2. Step 2: Convert to fraction form
    319,239.72/440,553.80 = 176,004.89/x
  3. Step 3: Cross multiply
    319,239.72x = 440,553.80 × 176,004.89
  4. Step 4: Simplify right side
    319,239.72x = 77,539,623,108.08
  5. Step 5: Solve for x
    x = 77,539,623,108.08/319,239.72
  6. Step 6: Final answer
    x = 242,888.39

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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.