Home / 813,588.96-1,122,877.04-519,365.78

Finding the Fourth Proportional to 813,588.96, 1,122,877.04 and 519,365.78

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Solution

The fourth proportional to 813,588.96, 1,122,877.04 and 519,365.78 is: 716,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,588.96 : 1,122,877.04 = 519,365.78 : x
  2. Step 2: Convert to fraction form
    813,588.96/1,122,877.04 = 519,365.78/x
  3. Step 3: Cross multiply
    813,588.96x = 1,122,877.04 × 519,365.78
  4. Step 4: Simplify right side
    813,588.96x = 583,183,909,723.69
  5. Step 5: Solve for x
    x = 583,183,909,723.69/813,588.96
  6. Step 6: Final answer
    x = 716,804.11

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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.