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Finding the Fourth Proportional to 401,776.16, 554,410.74 and 240,627.08

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Solution

The fourth proportional to 401,776.16, 554,410.74 and 240,627.08 is: 332,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,776.16 : 554,410.74 = 240,627.08 : x
  2. Step 2: Convert to fraction form
    401,776.16/554,410.74 = 240,627.08/x
  3. Step 3: Cross multiply
    401,776.16x = 554,410.74 × 240,627.08
  4. Step 4: Simplify right side
    401,776.16x = 133,406,237,486.84
  5. Step 5: Solve for x
    x = 133,406,237,486.84/401,776.16
  6. Step 6: Final answer
    x = 332,041.20

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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.