Home / 919,818.40-1,269,347.52-517,410.40

Finding the Fourth Proportional to 919,818.40, 1,269,347.52 and 517,410.40

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Solution

The fourth proportional to 919,818.40, 1,269,347.52 and 517,410.40 is: 714,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,818.40 : 1,269,347.52 = 517,410.40 : x
  2. Step 2: Convert to fraction form
    919,818.40/1,269,347.52 = 517,410.40/x
  3. Step 3: Cross multiply
    919,818.40x = 1,269,347.52 × 517,410.40
  4. Step 4: Simplify right side
    919,818.40x = 656,773,608,062.21
  5. Step 5: Solve for x
    x = 656,773,608,062.21/919,818.40
  6. Step 6: Final answer
    x = 714,025.30

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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.