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Finding the Fourth Proportional to 401,798.75, 554,507.24 and 265,596.50

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Solution

The fourth proportional to 401,798.75, 554,507.24 and 265,596.50 is: 366,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,798.75 : 554,507.24 = 265,596.50 : x
  2. Step 2: Convert to fraction form
    401,798.75/554,507.24 = 265,596.50/x
  3. Step 3: Cross multiply
    401,798.75x = 554,507.24 × 265,596.50
  4. Step 4: Simplify right side
    401,798.75x = 147,275,182,226.95
  5. Step 5: Solve for x
    x = 147,275,182,226.95/401,798.75
  6. Step 6: Final answer
    x = 366,539.68

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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.