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Finding the Fourth Proportional to 307,856.36, 424,905.06 and 180,598.76

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Solution

The fourth proportional to 307,856.36, 424,905.06 and 180,598.76 is: 249,263.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,856.36 : 424,905.06 = 180,598.76 : x
  2. Step 2: Convert to fraction form
    307,856.36/424,905.06 = 180,598.76/x
  3. Step 3: Cross multiply
    307,856.36x = 424,905.06 × 180,598.76
  4. Step 4: Simplify right side
    307,856.36x = 76,737,326,953.73
  5. Step 5: Solve for x
    x = 76,737,326,953.73/307,856.36
  6. Step 6: Final answer
    x = 249,263.41

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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.