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Finding the Fourth Proportional to 617,595.22, 851,604.60 and 402,336.10

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Solution

The fourth proportional to 617,595.22, 851,604.60 and 402,336.10 is: 554,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,595.22 : 851,604.60 = 402,336.10 : x
  2. Step 2: Convert to fraction form
    617,595.22/851,604.60 = 402,336.10/x
  3. Step 3: Cross multiply
    617,595.22x = 851,604.60 × 402,336.10
  4. Step 4: Simplify right side
    617,595.22x = 342,631,273,506.06
  5. Step 5: Solve for x
    x = 342,631,273,506.06/617,595.22
  6. Step 6: Final answer
    x = 554,782.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.