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Finding the Fourth Proportional to 804,634.30, 1,129,637.30 and 804,634.30

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Solution

The fourth proportional to 804,634.30, 1,129,637.30 and 804,634.30 is: 1,129,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,634.30 : 1,129,637.30 = 804,634.30 : x
  2. Step 2: Convert to fraction form
    804,634.30/1,129,637.30 = 804,634.30/x
  3. Step 3: Cross multiply
    804,634.30x = 1,129,637.30 × 804,634.30
  4. Step 4: Simplify right side
    804,634.30x = 908,944,918,139.39
  5. Step 5: Solve for x
    x = 908,944,918,139.39/804,634.30
  6. Step 6: Final answer
    x = 1,129,637.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.