Home / 910,123.08-1,256,371.86-587,989.32

Finding the Fourth Proportional to 910,123.08, 1,256,371.86 and 587,989.32

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Solution

The fourth proportional to 910,123.08, 1,256,371.86 and 587,989.32 is: 811,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,123.08 : 1,256,371.86 = 587,989.32 : x
  2. Step 2: Convert to fraction form
    910,123.08/1,256,371.86 = 587,989.32/x
  3. Step 3: Cross multiply
    910,123.08x = 1,256,371.86 × 587,989.32
  4. Step 4: Simplify right side
    910,123.08x = 738,733,235,628.54
  5. Step 5: Solve for x
    x = 738,733,235,628.54/910,123.08
  6. Step 6: Final answer
    x = 811,684.98

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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.