Home / 919,549.48-1,268,966.10-517,141.48

Finding the Fourth Proportional to 919,549.48, 1,268,966.10 and 517,141.48

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Solution

The fourth proportional to 919,549.48, 1,268,966.10 and 517,141.48 is: 713,648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,549.48 : 1,268,966.10 = 517,141.48 : x
  2. Step 2: Convert to fraction form
    919,549.48/1,268,966.10 = 517,141.48/x
  3. Step 3: Cross multiply
    919,549.48x = 1,268,966.10 × 517,141.48
  4. Step 4: Simplify right side
    919,549.48x = 656,235,007,023.83
  5. Step 5: Solve for x
    x = 656,235,007,023.83/919,549.48
  6. Step 6: Final answer
    x = 713,648.39

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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.