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Finding the Fourth Proportional to 403,276.40, 604,914.60 and 107,788.40

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Solution

The fourth proportional to 403,276.40, 604,914.60 and 107,788.40 is: 161,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,276.40 : 604,914.60 = 107,788.40 : x
  2. Step 2: Convert to fraction form
    403,276.40/604,914.60 = 107,788.40/x
  3. Step 3: Cross multiply
    403,276.40x = 604,914.60 × 107,788.40
  4. Step 4: Simplify right side
    403,276.40x = 65,202,776,870.64
  5. Step 5: Solve for x
    x = 65,202,776,870.64/403,276.40
  6. Step 6: Final answer
    x = 161,682.60

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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.