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Finding the Fourth Proportional to 637,198.37, 879,326.88 and 350,712.26

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Solution

The fourth proportional to 637,198.37, 879,326.88 and 350,712.26 is: 483,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,198.37 : 879,326.88 = 350,712.26 : x
  2. Step 2: Convert to fraction form
    637,198.37/879,326.88 = 350,712.26/x
  3. Step 3: Cross multiply
    637,198.37x = 879,326.88 × 350,712.26
  4. Step 4: Simplify right side
    637,198.37x = 308,390,717,363.55
  5. Step 5: Solve for x
    x = 308,390,717,363.55/637,198.37
  6. Step 6: Final answer
    x = 483,979.14

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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.