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Finding the Fourth Proportional to 319,234.64, 440,538.55 and 176,008.01

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Solution

The fourth proportional to 319,234.64, 440,538.55 and 176,008.01 is: 242,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,234.64 : 440,538.55 = 176,008.01 : x
  2. Step 2: Convert to fraction form
    319,234.64/440,538.55 = 176,008.01/x
  3. Step 3: Cross multiply
    319,234.64x = 440,538.55 × 176,008.01
  4. Step 4: Simplify right side
    319,234.64x = 77,538,310,871.07
  5. Step 5: Solve for x
    x = 77,538,310,871.07/319,234.64
  6. Step 6: Final answer
    x = 242,888.15

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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.