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Finding the Fourth Proportional to 442,415.46, 610,585.23 and 251,457.55

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Solution

The fourth proportional to 442,415.46, 610,585.23 and 251,457.55 is: 347,040.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,415.46 : 610,585.23 = 251,457.55 : x
  2. Step 2: Convert to fraction form
    442,415.46/610,585.23 = 251,457.55/x
  3. Step 3: Cross multiply
    442,415.46x = 610,585.23 × 251,457.55
  4. Step 4: Simplify right side
    442,415.46x = 153,536,266,001.99
  5. Step 5: Solve for x
    x = 153,536,266,001.99/442,415.46
  6. Step 6: Final answer
    x = 347,040.91

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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.