Home / 910,125.27-1,256,222.70-528,275.07

Finding the Fourth Proportional to 910,125.27, 1,256,222.70 and 528,275.07

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Solution

The fourth proportional to 910,125.27, 1,256,222.70 and 528,275.07 is: 729,164.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,125.27 : 1,256,222.70 = 528,275.07 : x
  2. Step 2: Convert to fraction form
    910,125.27/1,256,222.70 = 528,275.07/x
  3. Step 3: Cross multiply
    910,125.27x = 1,256,222.70 × 528,275.07
  4. Step 4: Simplify right side
    910,125.27x = 663,631,134,778.09
  5. Step 5: Solve for x
    x = 663,631,134,778.09/910,125.27
  6. Step 6: Final answer
    x = 729,164.61

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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.