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Finding the Fourth Proportional to 679,378.16, 937,553.51 and 373,467.44

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Solution

The fourth proportional to 679,378.16, 937,553.51 and 373,467.44 is: 515,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,378.16 : 937,553.51 = 373,467.44 : x
  2. Step 2: Convert to fraction form
    679,378.16/937,553.51 = 373,467.44/x
  3. Step 3: Cross multiply
    679,378.16x = 937,553.51 × 373,467.44
  4. Step 4: Simplify right side
    679,378.16x = 350,145,709,242.71
  5. Step 5: Solve for x
    x = 350,145,709,242.71/679,378.16
  6. Step 6: Final answer
    x = 515,391.47

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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.