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Finding the Fourth Proportional to 644,300.40, 888,501.72 and 593,443.44

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Solution

The fourth proportional to 644,300.40, 888,501.72 and 593,443.44 is: 818,369.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,300.40 : 888,501.72 = 593,443.44 : x
  2. Step 2: Convert to fraction form
    644,300.40/888,501.72 = 593,443.44/x
  3. Step 3: Cross multiply
    644,300.40x = 888,501.72 × 593,443.44
  4. Step 4: Simplify right side
    644,300.40x = 527,275,517,162.72
  5. Step 5: Solve for x
    x = 527,275,517,162.72/644,300.40
  6. Step 6: Final answer
    x = 818,369.07

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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.