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Finding the Fourth Proportional to 671,826.95, 927,121.19 and 370,020.95

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Solution

The fourth proportional to 671,826.95, 927,121.19 and 370,020.95 is: 510,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,826.95 : 927,121.19 = 370,020.95 : x
  2. Step 2: Convert to fraction form
    671,826.95/927,121.19 = 370,020.95/x
  3. Step 3: Cross multiply
    671,826.95x = 927,121.19 × 370,020.95
  4. Step 4: Simplify right side
    671,826.95x = 343,054,257,003.22
  5. Step 5: Solve for x
    x = 343,054,257,003.22/671,826.95
  6. Step 6: Final answer
    x = 510,628.90

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Double scale
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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.