Home / 818,339.16-1,228,033.08-397,385.40

Finding the Fourth Proportional to 818,339.16, 1,228,033.08 and 397,385.40

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Solution

The fourth proportional to 818,339.16, 1,228,033.08 and 397,385.40 is: 596,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,339.16 : 1,228,033.08 = 397,385.40 : x
  2. Step 2: Convert to fraction form
    818,339.16/1,228,033.08 = 397,385.40/x
  3. Step 3: Cross multiply
    818,339.16x = 1,228,033.08 × 397,385.40
  4. Step 4: Simplify right side
    818,339.16x = 488,002,416,709.03
  5. Step 5: Solve for x
    x = 488,002,416,709.03/818,339.16
  6. Step 6: Final answer
    x = 596,332.72

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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.