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Finding the Fourth Proportional to 573,742.40, 859,576.80 and 507,387.20

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Solution

The fourth proportional to 573,742.40, 859,576.80 and 507,387.20 is: 760,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,742.40 : 859,576.80 = 507,387.20 : x
  2. Step 2: Convert to fraction form
    573,742.40/859,576.80 = 507,387.20/x
  3. Step 3: Cross multiply
    573,742.40x = 859,576.80 × 507,387.20
  4. Step 4: Simplify right side
    573,742.40x = 436,138,265,736.96
  5. Step 5: Solve for x
    x = 436,138,265,736.96/573,742.40
  6. Step 6: Final answer
    x = 760,163.91

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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.