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Finding the Fourth Proportional to 612,111.60, 917,511.30 and 232,885.80

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Solution

The fourth proportional to 612,111.60, 917,511.30 and 232,885.80 is: 349,079.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,111.60 : 917,511.30 = 232,885.80 : x
  2. Step 2: Convert to fraction form
    612,111.60/917,511.30 = 232,885.80/x
  3. Step 3: Cross multiply
    612,111.60x = 917,511.30 × 232,885.80
  4. Step 4: Simplify right side
    612,111.60x = 213,675,353,109.54
  5. Step 5: Solve for x
    x = 213,675,353,109.54/612,111.60
  6. Step 6: Final answer
    x = 349,079.08

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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.