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Finding the Fourth Proportional to 612,110.80, 918,166.20 and 433,651.60

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Solution

The fourth proportional to 612,110.80, 918,166.20 and 433,651.60 is: 650,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,110.80 : 918,166.20 = 433,651.60 : x
  2. Step 2: Convert to fraction form
    612,110.80/918,166.20 = 433,651.60/x
  3. Step 3: Cross multiply
    612,110.80x = 918,166.20 × 433,651.60
  4. Step 4: Simplify right side
    612,110.80x = 398,164,241,695.92
  5. Step 5: Solve for x
    x = 398,164,241,695.92/612,110.80
  6. Step 6: Final answer
    x = 650,477.40

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Similar ratio
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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.