Home / 885,855.30-1,328,994.14-286,816.64

Finding the Fourth Proportional to 885,855.30, 1,328,994.14 and 286,816.64

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Solution

The fourth proportional to 885,855.30, 1,328,994.14 and 286,816.64 is: 430,293.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,855.30 : 1,328,994.14 = 286,816.64 : x
  2. Step 2: Convert to fraction form
    885,855.30/1,328,994.14 = 286,816.64/x
  3. Step 3: Cross multiply
    885,855.30x = 1,328,994.14 × 286,816.64
  4. Step 4: Simplify right side
    885,855.30x = 381,177,633,814.49
  5. Step 5: Solve for x
    x = 381,177,633,814.49/885,855.30
  6. Step 6: Final answer
    x = 430,293.34

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Double scale
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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.