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Finding the Fourth Proportional to 564,690.94, 779,274.83 and 310,058.53

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Solution

The fourth proportional to 564,690.94, 779,274.83 and 310,058.53 is: 427,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,690.94 : 779,274.83 = 310,058.53 : x
  2. Step 2: Convert to fraction form
    564,690.94/779,274.83 = 310,058.53/x
  3. Step 3: Cross multiply
    564,690.94x = 779,274.83 × 310,058.53
  4. Step 4: Simplify right side
    564,690.94x = 241,620,808,255.80
  5. Step 5: Solve for x
    x = 241,620,808,255.80/564,690.94
  6. Step 6: Final answer
    x = 427,881.50

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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.