Home / 1,317,967.60-1,976,951.40-519,275.20

Finding the Fourth Proportional to 1,317,967.60, 1,976,951.40 and 519,275.20

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Solution

The fourth proportional to 1,317,967.60, 1,976,951.40 and 519,275.20 is: 778,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,967.60 : 1,976,951.40 = 519,275.20 : x
  2. Step 2: Convert to fraction form
    1,317,967.60/1,976,951.40 = 519,275.20/x
  3. Step 3: Cross multiply
    1,317,967.60x = 1,976,951.40 × 519,275.20
  4. Step 4: Simplify right side
    1,317,967.60x = 1,026,581,833,625.28
  5. Step 5: Solve for x
    x = 1,026,581,833,625.28/1,317,967.60
  6. Step 6: Final answer
    x = 778,912.80

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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.