Home / 684,175.92-944,312.64-397,861.17

Finding the Fourth Proportional to 684,175.92, 944,312.64 and 397,861.17

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Solution

The fourth proportional to 684,175.92, 944,312.64 and 397,861.17 is: 549,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,175.92 : 944,312.64 = 397,861.17 : x
  2. Step 2: Convert to fraction form
    684,175.92/944,312.64 = 397,861.17/x
  3. Step 3: Cross multiply
    684,175.92x = 944,312.64 × 397,861.17
  4. Step 4: Simplify right side
    684,175.92x = 375,705,331,796.19
  5. Step 5: Solve for x
    x = 375,705,331,796.19/684,175.92
  6. Step 6: Final answer
    x = 549,135.57

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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.