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Finding the Fourth Proportional to 676,723, 933,889.64 and 370,779.36

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Solution

The fourth proportional to 676,723, 933,889.64 and 370,779.36 is: 511,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,723 : 933,889.64 = 370,779.36 : x
  2. Step 2: Convert to fraction form
    676,723/933,889.64 = 370,779.36/x
  3. Step 3: Cross multiply
    676,723x = 933,889.64 × 370,779.36
  4. Step 4: Simplify right side
    676,723x = 346,267,003,029.83
  5. Step 5: Solve for x
    x = 346,267,003,029.83/676,723
  6. Step 6: Final answer
    x = 511,682.04

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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.