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Finding the Fourth Proportional to 489,524.32, 674,284.84 and 346,037.68

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Solution

The fourth proportional to 489,524.32, 674,284.84 and 346,037.68 is: 476,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,524.32 : 674,284.84 = 346,037.68 : x
  2. Step 2: Convert to fraction form
    489,524.32/674,284.84 = 346,037.68/x
  3. Step 3: Cross multiply
    489,524.32x = 674,284.84 × 346,037.68
  4. Step 4: Simplify right side
    489,524.32x = 233,327,961,692.77
  5. Step 5: Solve for x
    x = 233,327,961,692.77/489,524.32
  6. Step 6: Final answer
    x = 476,642.23

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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.