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Finding the Fourth Proportional to 577,530.96, 864,950.76 and 561,587.28

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Solution

The fourth proportional to 577,530.96, 864,950.76 and 561,587.28 is: 841,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,530.96 : 864,950.76 = 561,587.28 : x
  2. Step 2: Convert to fraction form
    577,530.96/864,950.76 = 561,587.28/x
  3. Step 3: Cross multiply
    577,530.96x = 864,950.76 × 561,587.28
  4. Step 4: Simplify right side
    577,530.96x = 485,745,344,642.33
  5. Step 5: Solve for x
    x = 485,745,344,642.33/577,530.96
  6. Step 6: Final answer
    x = 841,072.39

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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.