Home / 798,455.10-1,197,682.65-515,019.90

Finding the Fourth Proportional to 798,455.10, 1,197,682.65 and 515,019.90

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Solution

The fourth proportional to 798,455.10, 1,197,682.65 and 515,019.90 is: 772,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,455.10 : 1,197,682.65 = 515,019.90 : x
  2. Step 2: Convert to fraction form
    798,455.10/1,197,682.65 = 515,019.90/x
  3. Step 3: Cross multiply
    798,455.10x = 1,197,682.65 × 515,019.90
  4. Step 4: Simplify right side
    798,455.10x = 616,830,398,634.74
  5. Step 5: Solve for x
    x = 616,830,398,634.74/798,455.10
  6. Step 6: Final answer
    x = 772,529.85

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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.