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Finding the Fourth Proportional to 553,912.93, 830,869.35 and 175,099.72

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Solution

The fourth proportional to 553,912.93, 830,869.35 and 175,099.72 is: 262,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,912.93 : 830,869.35 = 175,099.72 : x
  2. Step 2: Convert to fraction form
    553,912.93/830,869.35 = 175,099.72/x
  3. Step 3: Cross multiply
    553,912.93x = 830,869.35 × 175,099.72
  4. Step 4: Simplify right side
    553,912.93x = 145,484,990,541.58
  5. Step 5: Solve for x
    x = 145,484,990,541.58/553,912.93
  6. Step 6: Final answer
    x = 262,649.57

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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.