Home / 813,070.37-1,221,365.39-528,614.61

Finding the Fourth Proportional to 813,070.37, 1,221,365.39 and 528,614.61

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Solution

The fourth proportional to 813,070.37, 1,221,365.39 and 528,614.61 is: 794,066.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,070.37 : 1,221,365.39 = 528,614.61 : x
  2. Step 2: Convert to fraction form
    813,070.37/1,221,365.39 = 528,614.61/x
  3. Step 3: Cross multiply
    813,070.37x = 1,221,365.39 × 528,614.61
  4. Step 4: Simplify right side
    813,070.37x = 645,631,586,659.28
  5. Step 5: Solve for x
    x = 645,631,586,659.28/813,070.37
  6. Step 6: Final answer
    x = 794,066.07

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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.