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Finding the Fourth Proportional to 906,630.60, 1,360,280.70 and 374,197.80

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Solution

The fourth proportional to 906,630.60, 1,360,280.70 and 374,197.80 is: 561,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,630.60 : 1,360,280.70 = 374,197.80 : x
  2. Step 2: Convert to fraction form
    906,630.60/1,360,280.70 = 374,197.80/x
  3. Step 3: Cross multiply
    906,630.60x = 1,360,280.70 × 374,197.80
  4. Step 4: Simplify right side
    906,630.60x = 509,014,045,322.46
  5. Step 5: Solve for x
    x = 509,014,045,322.46/906,630.60
  6. Step 6: Final answer
    x = 561,434.88

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1.5x scale

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.