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Finding the Fourth Proportional to 515,867.70, 773,145.45 and 249,053.70

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Solution

The fourth proportional to 515,867.70, 773,145.45 and 249,053.70 is: 373,263.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,867.70 : 773,145.45 = 249,053.70 : x
  2. Step 2: Convert to fraction form
    515,867.70/773,145.45 = 249,053.70/x
  3. Step 3: Cross multiply
    515,867.70x = 773,145.45 × 249,053.70
  4. Step 4: Simplify right side
    515,867.70x = 192,554,734,960.67
  5. Step 5: Solve for x
    x = 192,554,734,960.67/515,867.70
  6. Step 6: Final answer
    x = 373,263.79

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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.