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Finding the Fourth Proportional to 553,984.64, 831,065.80 and 234,139.62

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Solution

The fourth proportional to 553,984.64, 831,065.80 and 234,139.62 is: 351,246.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,984.64 : 831,065.80 = 234,139.62 : x
  2. Step 2: Convert to fraction form
    553,984.64/831,065.80 = 234,139.62/x
  3. Step 3: Cross multiply
    553,984.64x = 831,065.80 × 234,139.62
  4. Step 4: Simplify right side
    553,984.64x = 194,585,430,607.00
  5. Step 5: Solve for x
    x = 194,585,430,607.00/553,984.64
  6. Step 6: Final answer
    x = 351,246.98

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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.