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Finding the Fourth Proportional to 594,370.14, 820,015.52 and 390,530.84

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Solution

The fourth proportional to 594,370.14, 820,015.52 and 390,530.84 is: 538,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,370.14 : 820,015.52 = 390,530.84 : x
  2. Step 2: Convert to fraction form
    594,370.14/820,015.52 = 390,530.84/x
  3. Step 3: Cross multiply
    594,370.14x = 820,015.52 × 390,530.84
  4. Step 4: Simplify right side
    594,370.14x = 320,241,349,838.64
  5. Step 5: Solve for x
    x = 320,241,349,838.64/594,370.14
  6. Step 6: Final answer
    x = 538,791.11

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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.