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Finding the Fourth Proportional to 328,449.13, 453,225.98 and 242,453.86

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Solution

The fourth proportional to 328,449.13, 453,225.98 and 242,453.86 is: 334,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,449.13 : 453,225.98 = 242,453.86 : x
  2. Step 2: Convert to fraction form
    328,449.13/453,225.98 = 242,453.86/x
  3. Step 3: Cross multiply
    328,449.13x = 453,225.98 × 242,453.86
  4. Step 4: Simplify right side
    328,449.13x = 109,886,387,776.35
  5. Step 5: Solve for x
    x = 109,886,387,776.35/328,449.13
  6. Step 6: Final answer
    x = 334,561.36

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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.