Home / 544,619.60-816,929.40-395,320.40

Finding the Fourth Proportional to 544,619.60, 816,929.40 and 395,320.40

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Solution

The fourth proportional to 544,619.60, 816,929.40 and 395,320.40 is: 592,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,619.60 : 816,929.40 = 395,320.40 : x
  2. Step 2: Convert to fraction form
    544,619.60/816,929.40 = 395,320.40/x
  3. Step 3: Cross multiply
    544,619.60x = 816,929.40 × 395,320.40
  4. Step 4: Simplify right side
    544,619.60x = 322,948,857,179.76
  5. Step 5: Solve for x
    x = 322,948,857,179.76/544,619.60
  6. Step 6: Final answer
    x = 592,980.60

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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.