Home / 859,106.52-1,185,528.62-515,132.30

Finding the Fourth Proportional to 859,106.52, 1,185,528.62 and 515,132.30

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Solution

The fourth proportional to 859,106.52, 1,185,528.62 and 515,132.30 is: 710,859.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,106.52 : 1,185,528.62 = 515,132.30 : x
  2. Step 2: Convert to fraction form
    859,106.52/1,185,528.62 = 515,132.30/x
  3. Step 3: Cross multiply
    859,106.52x = 1,185,528.62 × 515,132.30
  4. Step 4: Simplify right side
    859,106.52x = 610,704,084,736.43
  5. Step 5: Solve for x
    x = 610,704,084,736.43/859,106.52
  6. Step 6: Final answer
    x = 710,859.56

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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.