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Finding the Fourth Proportional to 431,139.72, 594,972.36 and 249,956.76

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Solution

The fourth proportional to 431,139.72, 594,972.36 and 249,956.76 is: 344,940.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,139.72 : 594,972.36 = 249,956.76 : x
  2. Step 2: Convert to fraction form
    431,139.72/594,972.36 = 249,956.76/x
  3. Step 3: Cross multiply
    431,139.72x = 594,972.36 × 249,956.76
  4. Step 4: Simplify right side
    431,139.72x = 148,717,363,395.15
  5. Step 5: Solve for x
    x = 148,717,363,395.15/431,139.72
  6. Step 6: Final answer
    x = 344,940.07

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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.