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Finding the Fourth Proportional to 319,298.94, 440,635.59 and 176,064.12

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Solution

The fourth proportional to 319,298.94, 440,635.59 and 176,064.12 is: 242,970.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,298.94 : 440,635.59 = 176,064.12 : x
  2. Step 2: Convert to fraction form
    319,298.94/440,635.59 = 176,064.12/x
  3. Step 3: Cross multiply
    319,298.94x = 440,635.59 × 176,064.12
  4. Step 4: Simplify right side
    319,298.94x = 77,580,117,394.03
  5. Step 5: Solve for x
    x = 77,580,117,394.03/319,298.94
  6. Step 6: Final answer
    x = 242,970.17

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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.