Home / 813,973.50-1,123,283.52-451,452.78

Finding the Fourth Proportional to 813,973.50, 1,123,283.52 and 451,452.78

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Solution

The fourth proportional to 813,973.50, 1,123,283.52 and 451,452.78 is: 623,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,973.50 : 1,123,283.52 = 451,452.78 : x
  2. Step 2: Convert to fraction form
    813,973.50/1,123,283.52 = 451,452.78/x
  3. Step 3: Cross multiply
    813,973.50x = 1,123,283.52 × 451,452.78
  4. Step 4: Simplify right side
    813,973.50x = 507,109,467,832.19
  5. Step 5: Solve for x
    x = 507,109,467,832.19/813,973.50
  6. Step 6: Final answer
    x = 623,004.89

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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.