Home / 919,216.03-1,268,594.76-511,394.71

Finding the Fourth Proportional to 919,216.03, 1,268,594.76 and 511,394.71

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Solution

The fourth proportional to 919,216.03, 1,268,594.76 and 511,394.71 is: 705,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,216.03 : 1,268,594.76 = 511,394.71 : x
  2. Step 2: Convert to fraction form
    919,216.03/1,268,594.76 = 511,394.71/x
  3. Step 3: Cross multiply
    919,216.03x = 1,268,594.76 × 511,394.71
  4. Step 4: Simplify right side
    919,216.03x = 648,752,649,397.72
  5. Step 5: Solve for x
    x = 648,752,649,397.72/919,216.03
  6. Step 6: Final answer
    x = 705,767.34

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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.