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Finding the Fourth Proportional to 530,493.54, 732,081.18 and 288,777.93

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Solution

The fourth proportional to 530,493.54, 732,081.18 and 288,777.93 is: 398,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,493.54 : 732,081.18 = 288,777.93 : x
  2. Step 2: Convert to fraction form
    530,493.54/732,081.18 = 288,777.93/x
  3. Step 3: Cross multiply
    530,493.54x = 732,081.18 × 288,777.93
  4. Step 4: Simplify right side
    530,493.54x = 211,408,887,752.36
  5. Step 5: Solve for x
    x = 211,408,887,752.36/530,493.54
  6. Step 6: Final answer
    x = 398,513.60

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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.