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Finding the Fourth Proportional to 686,773.12, 1,030,443.12 and 370,858

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Solution

The fourth proportional to 686,773.12, 1,030,443.12 and 370,858 is: 556,440.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,773.12 : 1,030,443.12 = 370,858 : x
  2. Step 2: Convert to fraction form
    686,773.12/1,030,443.12 = 370,858/x
  3. Step 3: Cross multiply
    686,773.12x = 1,030,443.12 × 370,858
  4. Step 4: Simplify right side
    686,773.12x = 382,148,074,596.96
  5. Step 5: Solve for x
    x = 382,148,074,596.96/686,773.12
  6. Step 6: Final answer
    x = 556,440.06

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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.