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Finding the Fourth Proportional to 514,996.77, 710,682.80 and 285,554.95

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Solution

The fourth proportional to 514,996.77, 710,682.80 and 285,554.95 is: 394,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,996.77 : 710,682.80 = 285,554.95 : x
  2. Step 2: Convert to fraction form
    514,996.77/710,682.80 = 285,554.95/x
  3. Step 3: Cross multiply
    514,996.77x = 710,682.80 × 285,554.95
  4. Step 4: Simplify right side
    514,996.77x = 202,938,992,133.75
  5. Step 5: Solve for x
    x = 202,938,992,133.75/514,996.77
  6. Step 6: Final answer
    x = 394,058.77

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1.5x scale

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.