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Finding the Fourth Proportional to 376,021.80, 564,032.70 and 264,047.40

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Solution

The fourth proportional to 376,021.80, 564,032.70 and 264,047.40 is: 396,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,021.80 : 564,032.70 = 264,047.40 : x
  2. Step 2: Convert to fraction form
    376,021.80/564,032.70 = 264,047.40/x
  3. Step 3: Cross multiply
    376,021.80x = 564,032.70 × 264,047.40
  4. Step 4: Simplify right side
    376,021.80x = 148,931,367,949.98
  5. Step 5: Solve for x
    x = 148,931,367,949.98/376,021.80
  6. Step 6: Final answer
    x = 396,071.10

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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.