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Finding the Fourth Proportional to 612,336.81, 918,523.59 and 506,546.76

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Solution

The fourth proportional to 612,336.81, 918,523.59 and 506,546.76 is: 759,835.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,336.81 : 918,523.59 = 506,546.76 : x
  2. Step 2: Convert to fraction form
    612,336.81/918,523.59 = 506,546.76/x
  3. Step 3: Cross multiply
    612,336.81x = 918,523.59 × 506,546.76
  4. Step 4: Simplify right side
    612,336.81x = 465,275,148,498.07
  5. Step 5: Solve for x
    x = 465,275,148,498.07/612,336.81
  6. Step 6: Final answer
    x = 759,835.34

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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.