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Finding the Fourth Proportional to 524,188.80, 723,427.20 and 297,907.20

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Solution

The fourth proportional to 524,188.80, 723,427.20 and 297,907.20 is: 411,138.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,188.80 : 723,427.20 = 297,907.20 : x
  2. Step 2: Convert to fraction form
    524,188.80/723,427.20 = 297,907.20/x
  3. Step 3: Cross multiply
    524,188.80x = 723,427.20 × 297,907.20
  4. Step 4: Simplify right side
    524,188.80x = 215,514,171,555.84
  5. Step 5: Solve for x
    x = 215,514,171,555.84/524,188.80
  6. Step 6: Final answer
    x = 411,138.45

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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.