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Finding the Fourth Proportional to 516,019.20, 773,372.70 and 249,205.20

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Solution

The fourth proportional to 516,019.20, 773,372.70 and 249,205.20 is: 373,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,019.20 : 773,372.70 = 249,205.20 : x
  2. Step 2: Convert to fraction form
    516,019.20/773,372.70 = 249,205.20/x
  3. Step 3: Cross multiply
    516,019.20x = 773,372.70 × 249,205.20
  4. Step 4: Simplify right side
    516,019.20x = 192,728,498,378.04
  5. Step 5: Solve for x
    x = 192,728,498,378.04/516,019.20
  6. Step 6: Final answer
    x = 373,490.94

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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.