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Finding the Fourth Proportional to 679,409.39, 937,596.88 and 373,498.67

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Solution

The fourth proportional to 679,409.39, 937,596.88 and 373,498.67 is: 515,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,409.39 : 937,596.88 = 373,498.67 : x
  2. Step 2: Convert to fraction form
    679,409.39/937,596.88 = 373,498.67/x
  3. Step 3: Cross multiply
    679,409.39x = 937,596.88 × 373,498.67
  4. Step 4: Simplify right side
    679,409.39x = 350,191,183,921.91
  5. Step 5: Solve for x
    x = 350,191,183,921.91/679,409.39
  6. Step 6: Final answer
    x = 515,434.71

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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.