Home / 527,513.19-727,968.93-285,795.78

Finding the Fourth Proportional to 527,513.19, 727,968.93 and 285,795.78

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Solution

The fourth proportional to 527,513.19, 727,968.93 and 285,795.78 is: 394,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,513.19 : 727,968.93 = 285,795.78 : x
  2. Step 2: Convert to fraction form
    527,513.19/727,968.93 = 285,795.78/x
  3. Step 3: Cross multiply
    527,513.19x = 727,968.93 × 285,795.78
  4. Step 4: Simplify right side
    527,513.19x = 208,050,448,165.12
  5. Step 5: Solve for x
    x = 208,050,448,165.12/527,513.19
  6. Step 6: Final answer
    x = 394,398.57

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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.