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Finding the Fourth Proportional to 403,312.40, 604,968.60 and 166,824.80

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Solution

The fourth proportional to 403,312.40, 604,968.60 and 166,824.80 is: 250,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,312.40 : 604,968.60 = 166,824.80 : x
  2. Step 2: Convert to fraction form
    403,312.40/604,968.60 = 166,824.80/x
  3. Step 3: Cross multiply
    403,312.40x = 604,968.60 × 166,824.80
  4. Step 4: Simplify right side
    403,312.40x = 100,923,765,701.28
  5. Step 5: Solve for x
    x = 100,923,765,701.28/403,312.40
  6. Step 6: Final answer
    x = 250,237.20

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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.