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Finding the Fourth Proportional to 450,562.50, 621,778.07 and 249,358.50

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Solution

The fourth proportional to 450,562.50, 621,778.07 and 249,358.50 is: 344,115.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,562.50 : 621,778.07 = 249,358.50 : x
  2. Step 2: Convert to fraction form
    450,562.50/621,778.07 = 249,358.50/x
  3. Step 3: Cross multiply
    450,562.50x = 621,778.07 × 249,358.50
  4. Step 4: Simplify right side
    450,562.50x = 155,045,647,491.49
  5. Step 5: Solve for x
    x = 155,045,647,491.49/450,562.50
  6. Step 6: Final answer
    x = 344,115.74

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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.