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Finding the Fourth Proportional to 369,558.70, 554,420.37 and 144,940.45

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Solution

The fourth proportional to 369,558.70, 554,420.37 and 144,940.45 is: 217,442.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,558.70 : 554,420.37 = 144,940.45 : x
  2. Step 2: Convert to fraction form
    369,558.70/554,420.37 = 144,940.45/x
  3. Step 3: Cross multiply
    369,558.70x = 554,420.37 × 144,940.45
  4. Step 4: Simplify right side
    369,558.70x = 80,357,937,916.97
  5. Step 5: Solve for x
    x = 80,357,937,916.97/369,558.70
  6. Step 6: Final answer
    x = 217,442.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.