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Finding the Fourth Proportional to 588,672.95, 812,656.65 and 395,011.37

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Solution

The fourth proportional to 588,672.95, 812,656.65 and 395,011.37 is: 545,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,672.95 : 812,656.65 = 395,011.37 : x
  2. Step 2: Convert to fraction form
    588,672.95/812,656.65 = 395,011.37/x
  3. Step 3: Cross multiply
    588,672.95x = 812,656.65 × 395,011.37
  4. Step 4: Simplify right side
    588,672.95x = 321,008,616,656.11
  5. Step 5: Solve for x
    x = 321,008,616,656.11/588,672.95
  6. Step 6: Final answer
    x = 545,308.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.