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Finding the Fourth Proportional to 695,312.93, 959,452.53 and 389,346.77

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Solution

The fourth proportional to 695,312.93, 959,452.53 and 389,346.77 is: 537,254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,312.93 : 959,452.53 = 389,346.77 : x
  2. Step 2: Convert to fraction form
    695,312.93/959,452.53 = 389,346.77/x
  3. Step 3: Cross multiply
    695,312.93x = 959,452.53 × 389,346.77
  4. Step 4: Simplify right side
    695,312.93x = 373,559,743,523.83
  5. Step 5: Solve for x
    x = 373,559,743,523.83/695,312.93
  6. Step 6: Final answer
    x = 537,254.13

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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.