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Finding the Fourth Proportional to 676,616.63, 933,730.80 and 370,703.86

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Solution

The fourth proportional to 676,616.63, 933,730.80 and 370,703.86 is: 511,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,616.63 : 933,730.80 = 370,703.86 : x
  2. Step 2: Convert to fraction form
    676,616.63/933,730.80 = 370,703.86/x
  3. Step 3: Cross multiply
    676,616.63x = 933,730.80 × 370,703.86
  4. Step 4: Simplify right side
    676,616.63x = 346,137,607,092.23
  5. Step 5: Solve for x
    x = 346,137,607,092.23/676,616.63
  6. Step 6: Final answer
    x = 511,571.24

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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.