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Finding the Fourth Proportional to 319,303.90, 440,616.84 and 176,060.89

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Solution

The fourth proportional to 319,303.90, 440,616.84 and 176,060.89 is: 242,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,303.90 : 440,616.84 = 176,060.89 : x
  2. Step 2: Convert to fraction form
    319,303.90/440,616.84 = 176,060.89/x
  3. Step 3: Cross multiply
    319,303.90x = 440,616.84 × 176,060.89
  4. Step 4: Simplify right side
    319,303.90x = 77,575,392,999.39
  5. Step 5: Solve for x
    x = 77,575,392,999.39/319,303.90
  6. Step 6: Final answer
    x = 242,951.60

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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.