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Finding the Fourth Proportional to 319,258.96, 440,597.34 and 176,018.80

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Solution

The fourth proportional to 319,258.96, 440,597.34 and 176,018.80 is: 242,916.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,258.96 : 440,597.34 = 176,018.80 : x
  2. Step 2: Convert to fraction form
    319,258.96/440,597.34 = 176,018.80/x
  3. Step 3: Cross multiply
    319,258.96x = 440,597.34 × 176,018.80
  4. Step 4: Simplify right side
    319,258.96x = 77,553,415,069.99
  5. Step 5: Solve for x
    x = 77,553,415,069.99/319,258.96
  6. Step 6: Final answer
    x = 242,916.96

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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.