Home / 798,539.40-1,197,809.10-515,104.20

Finding the Fourth Proportional to 798,539.40, 1,197,809.10 and 515,104.20

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Solution

The fourth proportional to 798,539.40, 1,197,809.10 and 515,104.20 is: 772,656.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,539.40 : 1,197,809.10 = 515,104.20 : x
  2. Step 2: Convert to fraction form
    798,539.40/1,197,809.10 = 515,104.20/x
  3. Step 3: Cross multiply
    798,539.40x = 1,197,809.10 × 515,104.20
  4. Step 4: Simplify right side
    798,539.40x = 616,996,498,208.22
  5. Step 5: Solve for x
    x = 616,996,498,208.22/798,539.40
  6. Step 6: Final answer
    x = 772,656.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.