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Finding the Fourth Proportional to 296,908.30, 445,362.45 and 260,044.30

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Solution

The fourth proportional to 296,908.30, 445,362.45 and 260,044.30 is: 390,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,908.30 : 445,362.45 = 260,044.30 : x
  2. Step 2: Convert to fraction form
    296,908.30/445,362.45 = 260,044.30/x
  3. Step 3: Cross multiply
    296,908.30x = 445,362.45 × 260,044.30
  4. Step 4: Simplify right side
    296,908.30x = 115,813,966,556.54
  5. Step 5: Solve for x
    x = 115,813,966,556.54/296,908.30
  6. Step 6: Final answer
    x = 390,066.45

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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.