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Finding the Fourth Proportional to 698,230.37, 963,558.32 and 392,306.74

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Solution

The fourth proportional to 698,230.37, 963,558.32 and 392,306.74 is: 541,383.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,230.37 : 963,558.32 = 392,306.74 : x
  2. Step 2: Convert to fraction form
    698,230.37/963,558.32 = 392,306.74/x
  3. Step 3: Cross multiply
    698,230.37x = 963,558.32 × 392,306.74
  4. Step 4: Simplify right side
    698,230.37x = 378,010,418,948.65
  5. Step 5: Solve for x
    x = 378,010,418,948.65/698,230.37
  6. Step 6: Final answer
    x = 541,383.52

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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.