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Finding the Fourth Proportional to 704,795.60, 972,618.42 and 382,505.69

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Solution

The fourth proportional to 704,795.60, 972,618.42 and 382,505.69 is: 527,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,795.60 : 972,618.42 = 382,505.69 : x
  2. Step 2: Convert to fraction form
    704,795.60/972,618.42 = 382,505.69/x
  3. Step 3: Cross multiply
    704,795.60x = 972,618.42 × 382,505.69
  4. Step 4: Simplify right side
    704,795.60x = 372,032,079,848.81
  5. Step 5: Solve for x
    x = 372,032,079,848.81/704,795.60
  6. Step 6: Final answer
    x = 527,858.12

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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.