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Finding the Fourth Proportional to 574,692.50, 792,302.64 and 402,378.68

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Solution

The fourth proportional to 574,692.50, 792,302.64 and 402,378.68 is: 554,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,692.50 : 792,302.64 = 402,378.68 : x
  2. Step 2: Convert to fraction form
    574,692.50/792,302.64 = 402,378.68/x
  3. Step 3: Cross multiply
    574,692.50x = 792,302.64 × 402,378.68
  4. Step 4: Simplify right side
    574,692.50x = 318,805,690,443.72
  5. Step 5: Solve for x
    x = 318,805,690,443.72/574,692.50
  6. Step 6: Final answer
    x = 554,741.35

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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.