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Finding the Fourth Proportional to 365,018.40, 547,521.12 and 187,421.04

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Solution

The fourth proportional to 365,018.40, 547,521.12 and 187,421.04 is: 281,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,018.40 : 547,521.12 = 187,421.04 : x
  2. Step 2: Convert to fraction form
    365,018.40/547,521.12 = 187,421.04/x
  3. Step 3: Cross multiply
    365,018.40x = 547,521.12 × 187,421.04
  4. Step 4: Simplify right side
    365,018.40x = 102,616,977,732.37
  5. Step 5: Solve for x
    x = 102,616,977,732.37/365,018.40
  6. Step 6: Final answer
    x = 281,128.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.