Home / 641,849.04-885,690.18-383,674.77

Finding the Fourth Proportional to 641,849.04, 885,690.18 and 383,674.77

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Solution

The fourth proportional to 641,849.04, 885,690.18 and 383,674.77 is: 529,434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,849.04 : 885,690.18 = 383,674.77 : x
  2. Step 2: Convert to fraction form
    641,849.04/885,690.18 = 383,674.77/x
  3. Step 3: Cross multiply
    641,849.04x = 885,690.18 × 383,674.77
  4. Step 4: Simplify right side
    641,849.04x = 339,816,976,102.76
  5. Step 5: Solve for x
    x = 339,816,976,102.76/641,849.04
  6. Step 6: Final answer
    x = 529,434.42

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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.