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Finding the Fourth Proportional to 911,611.53, 1,258,019.10 and 503,741.50

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Solution

The fourth proportional to 911,611.53, 1,258,019.10 and 503,741.50 is: 695,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,611.53 : 1,258,019.10 = 503,741.50 : x
  2. Step 2: Convert to fraction form
    911,611.53/1,258,019.10 = 503,741.50/x
  3. Step 3: Cross multiply
    911,611.53x = 1,258,019.10 × 503,741.50
  4. Step 4: Simplify right side
    911,611.53x = 633,716,425,317.60
  5. Step 5: Solve for x
    x = 633,716,425,317.60/911,611.53
  6. Step 6: Final answer
    x = 695,160.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.