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Finding the Fourth Proportional to 612,111.10, 917,510.55 and 232,885.30

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Solution

The fourth proportional to 612,111.10, 917,510.55 and 232,885.30 is: 349,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,111.10 : 917,510.55 = 232,885.30 : x
  2. Step 2: Convert to fraction form
    612,111.10/917,510.55 = 232,885.30/x
  3. Step 3: Cross multiply
    612,111.10x = 917,510.55 × 232,885.30
  4. Step 4: Simplify right side
    612,111.10x = 213,674,719,689.92
  5. Step 5: Solve for x
    x = 213,674,719,689.92/612,111.10
  6. Step 6: Final answer
    x = 349,078.33

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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.