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Finding the Fourth Proportional to 401,526.96, 554,105.70 and 248,534.68

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Solution

The fourth proportional to 401,526.96, 554,105.70 and 248,534.68 is: 342,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,526.96 : 554,105.70 = 248,534.68 : x
  2. Step 2: Convert to fraction form
    401,526.96/554,105.70 = 248,534.68/x
  3. Step 3: Cross multiply
    401,526.96x = 554,105.70 × 248,534.68
  4. Step 4: Simplify right side
    401,526.96x = 137,714,482,835.68
  5. Step 5: Solve for x
    x = 137,714,482,835.68/401,526.96
  6. Step 6: Final answer
    x = 342,976.93

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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.