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Finding the Fourth Proportional to 691,597.19, 954,408.27 and 385,692.90

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Solution

The fourth proportional to 691,597.19, 954,408.27 and 385,692.90 is: 532,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,597.19 : 954,408.27 = 385,692.90 : x
  2. Step 2: Convert to fraction form
    691,597.19/954,408.27 = 385,692.90/x
  3. Step 3: Cross multiply
    691,597.19x = 954,408.27 × 385,692.90
  4. Step 4: Simplify right side
    691,597.19x = 368,108,494,886.63
  5. Step 5: Solve for x
    x = 368,108,494,886.63/691,597.19
  6. Step 6: Final answer
    x = 532,258.52

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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.