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Finding the Fourth Proportional to 644,673.89, 967,042.95 and 245,345.61

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Solution

The fourth proportional to 644,673.89, 967,042.95 and 245,345.61 is: 368,030.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,673.89 : 967,042.95 = 245,345.61 : x
  2. Step 2: Convert to fraction form
    644,673.89/967,042.95 = 245,345.61/x
  3. Step 3: Cross multiply
    644,673.89x = 967,042.95 × 245,345.61
  4. Step 4: Simplify right side
    644,673.89x = 237,259,736,402.01
  5. Step 5: Solve for x
    x = 237,259,736,402.01/644,673.89
  6. Step 6: Final answer
    x = 368,030.63

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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.