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Finding the Fourth Proportional to 541,491.18, 747,336.03 and 312,004.53

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Solution

The fourth proportional to 541,491.18, 747,336.03 and 312,004.53 is: 430,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,491.18 : 747,336.03 = 312,004.53 : x
  2. Step 2: Convert to fraction form
    541,491.18/747,336.03 = 312,004.53/x
  3. Step 3: Cross multiply
    541,491.18x = 747,336.03 × 312,004.53
  4. Step 4: Simplify right side
    541,491.18x = 233,172,226,792.22
  5. Step 5: Solve for x
    x = 233,172,226,792.22/541,491.18
  6. Step 6: Final answer
    x = 430,611.31

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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.