Home / 812,337.63-1,121,043.03-444,830.20

Finding the Fourth Proportional to 812,337.63, 1,121,043.03 and 444,830.20

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Solution

The fourth proportional to 812,337.63, 1,121,043.03 and 444,830.20 is: 613,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,337.63 : 1,121,043.03 = 444,830.20 : x
  2. Step 2: Convert to fraction form
    812,337.63/1,121,043.03 = 444,830.20/x
  3. Step 3: Cross multiply
    812,337.63x = 1,121,043.03 × 444,830.20
  4. Step 4: Simplify right side
    812,337.63x = 498,673,795,243.51
  5. Step 5: Solve for x
    x = 498,673,795,243.51/812,337.63
  6. Step 6: Final answer
    x = 613,875.04

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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.