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Finding the Fourth Proportional to 477,680.21, 715,977.10 and 249,624.20

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Solution

The fourth proportional to 477,680.21, 715,977.10 and 249,624.20 is: 374,152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,680.21 : 715,977.10 = 249,624.20 : x
  2. Step 2: Convert to fraction form
    477,680.21/715,977.10 = 249,624.20/x
  3. Step 3: Cross multiply
    477,680.21x = 715,977.10 × 249,624.20
  4. Step 4: Simplify right side
    477,680.21x = 178,725,206,601.87
  5. Step 5: Solve for x
    x = 178,725,206,601.87/477,680.21
  6. Step 6: Final answer
    x = 374,152.42

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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.