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Finding the Fourth Proportional to 5,292,692.64, 7,931,684.16 and 2,763,302.40

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Solution

The fourth proportional to 5,292,692.64, 7,931,684.16 and 2,763,302.40 is: 4,141,113.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292,692.64 : 7,931,684.16 = 2,763,302.40 : x
  2. Step 2: Convert to fraction form
    5,292,692.64/7,931,684.16 = 2,763,302.40/x
  3. Step 3: Cross multiply
    5,292,692.64x = 7,931,684.16 × 2,763,302.40
  4. Step 4: Simplify right side
    5,292,692.64x = 21,917,641,875,369.98
  5. Step 5: Solve for x
    x = 21,917,641,875,369.98/5,292,692.64
  6. Step 6: Final answer
    x = 4,141,113.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.