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Finding the Fourth Proportional to 831,894.56, 1,148,067 and 469,186.08

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Solution

The fourth proportional to 831,894.56, 1,148,067 and 469,186.08 is: 647,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,894.56 : 1,148,067 = 469,186.08 : x
  2. Step 2: Convert to fraction form
    831,894.56/1,148,067 = 469,186.08/x
  3. Step 3: Cross multiply
    831,894.56x = 1,148,067 × 469,186.08
  4. Step 4: Simplify right side
    831,894.56x = 538,657,055,307.36
  5. Step 5: Solve for x
    x = 538,657,055,307.36/831,894.56
  6. Step 6: Final answer
    x = 647,506.40

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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.