Home / 1,318,228.40-1,976,953.80-519,244.40

Finding the Fourth Proportional to 1,318,228.40, 1,976,953.80 and 519,244.40

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Solution

The fourth proportional to 1,318,228.40, 1,976,953.80 and 519,244.40 is: 778,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,228.40 : 1,976,953.80 = 519,244.40 : x
  2. Step 2: Convert to fraction form
    1,318,228.40/1,976,953.80 = 519,244.40/x
  3. Step 3: Cross multiply
    1,318,228.40x = 1,976,953.80 × 519,244.40
  4. Step 4: Simplify right side
    1,318,228.40x = 1,026,522,189,708.72
  5. Step 5: Solve for x
    x = 1,026,522,189,708.72/1,318,228.40
  6. Step 6: Final answer
    x = 778,713.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.