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Finding the Fourth Proportional to 608,074.72, 912,308.96 and 292,490.56

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Solution

The fourth proportional to 608,074.72, 912,308.96 and 292,490.56 is: 438,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,074.72 : 912,308.96 = 292,490.56 : x
  2. Step 2: Convert to fraction form
    608,074.72/912,308.96 = 292,490.56/x
  3. Step 3: Cross multiply
    608,074.72x = 912,308.96 × 292,490.56
  4. Step 4: Simplify right side
    608,074.72x = 266,841,758,603.42
  5. Step 5: Solve for x
    x = 266,841,758,603.42/608,074.72
  6. Step 6: Final answer
    x = 438,830.54

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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.