Home / 636,981.24-878,933.64-364,996.80

Finding the Fourth Proportional to 636,981.24, 878,933.64 and 364,996.80

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Solution

The fourth proportional to 636,981.24, 878,933.64 and 364,996.80 is: 503,638.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,981.24 : 878,933.64 = 364,996.80 : x
  2. Step 2: Convert to fraction form
    636,981.24/878,933.64 = 364,996.80/x
  3. Step 3: Cross multiply
    636,981.24x = 878,933.64 × 364,996.80
  4. Step 4: Simplify right side
    636,981.24x = 320,807,966,012.35
  5. Step 5: Solve for x
    x = 320,807,966,012.35/636,981.24
  6. Step 6: Final answer
    x = 503,638.01

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Double scale
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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.