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Finding the Fourth Proportional to 430,803.90, 594,589.11 and 249,515.78

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Solution

The fourth proportional to 430,803.90, 594,589.11 and 249,515.78 is: 344,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,803.90 : 594,589.11 = 249,515.78 : x
  2. Step 2: Convert to fraction form
    430,803.90/594,589.11 = 249,515.78/x
  3. Step 3: Cross multiply
    430,803.90x = 594,589.11 × 249,515.78
  4. Step 4: Simplify right side
    430,803.90x = 148,359,364,160.95
  5. Step 5: Solve for x
    x = 148,359,364,160.95/430,803.90
  6. Step 6: Final answer
    x = 344,377.95

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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.