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Finding the Fourth Proportional to 774,886.16, 1,069,338.84 and 435,351.44

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Solution

The fourth proportional to 774,886.16, 1,069,338.84 and 435,351.44 is: 600,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,886.16 : 1,069,338.84 = 435,351.44 : x
  2. Step 2: Convert to fraction form
    774,886.16/1,069,338.84 = 435,351.44/x
  3. Step 3: Cross multiply
    774,886.16x = 1,069,338.84 × 435,351.44
  4. Step 4: Simplify right side
    774,886.16x = 465,538,203,841.93
  5. Step 5: Solve for x
    x = 465,538,203,841.93/774,886.16
  6. Step 6: Final answer
    x = 600,782.71

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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.