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Finding the Fourth Proportional to 586,694.80, 881,111.40 and 513,211.60

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Solution

The fourth proportional to 586,694.80, 881,111.40 and 513,211.60 is: 770,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,694.80 : 881,111.40 = 513,211.60 : x
  2. Step 2: Convert to fraction form
    586,694.80/881,111.40 = 513,211.60/x
  3. Step 3: Cross multiply
    586,694.80x = 881,111.40 × 513,211.60
  4. Step 4: Simplify right side
    586,694.80x = 452,196,591,372.24
  5. Step 5: Solve for x
    x = 452,196,591,372.24/586,694.80
  6. Step 6: Final answer
    x = 770,752.68

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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.