Home / 666,893.32-1,000,338.47-515,310.83

Finding the Fourth Proportional to 666,893.32, 1,000,338.47 and 515,310.83

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Solution

The fourth proportional to 666,893.32, 1,000,338.47 and 515,310.83 is: 772,965.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,893.32 : 1,000,338.47 = 515,310.83 : x
  2. Step 2: Convert to fraction form
    666,893.32/1,000,338.47 = 515,310.83/x
  3. Step 3: Cross multiply
    666,893.32x = 1,000,338.47 × 515,310.83
  4. Step 4: Simplify right side
    666,893.32x = 515,485,247,256.63
  5. Step 5: Solve for x
    x = 515,485,247,256.63/666,893.32
  6. Step 6: Final answer
    x = 772,965.08

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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.