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Finding the Fourth Proportional to 684,218, 944,191.14 and 374,114.90

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Solution

The fourth proportional to 684,218, 944,191.14 and 374,114.90 is: 516,262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,218 : 944,191.14 = 374,114.90 : x
  2. Step 2: Convert to fraction form
    684,218/944,191.14 = 374,114.90/x
  3. Step 3: Cross multiply
    684,218x = 944,191.14 × 374,114.90
  4. Step 4: Simplify right side
    684,218x = 353,235,973,921.99
  5. Step 5: Solve for x
    x = 353,235,973,921.99/684,218
  6. Step 6: Final answer
    x = 516,262.32

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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.