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Finding the Fourth Proportional to 684,238.88, 944,226.52 and 393,810.13

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Solution

The fourth proportional to 684,238.88, 944,226.52 and 393,810.13 is: 543,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,238.88 : 944,226.52 = 393,810.13 : x
  2. Step 2: Convert to fraction form
    684,238.88/944,226.52 = 393,810.13/x
  3. Step 3: Cross multiply
    684,238.88x = 944,226.52 × 393,810.13
  4. Step 4: Simplify right side
    684,238.88x = 371,845,971,610.42
  5. Step 5: Solve for x
    x = 371,845,971,610.42/684,238.88
  6. Step 6: Final answer
    x = 543,444.67

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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.