Home / 621,285.01-858,901.19-615,601.55

Finding the Fourth Proportional to 621,285.01, 858,901.19 and 615,601.55

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Solution

The fourth proportional to 621,285.01, 858,901.19 and 615,601.55 is: 851,044.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,285.01 : 858,901.19 = 615,601.55 : x
  2. Step 2: Convert to fraction form
    621,285.01/858,901.19 = 615,601.55/x
  3. Step 3: Cross multiply
    621,285.01x = 858,901.19 × 615,601.55
  4. Step 4: Simplify right side
    621,285.01x = 528,740,902,930.09
  5. Step 5: Solve for x
    x = 528,740,902,930.09/621,285.01
  6. Step 6: Final answer
    x = 851,044.04

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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.