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Finding the Fourth Proportional to 607,631.76, 911,644.47 and 292,113.27

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Solution

The fourth proportional to 607,631.76, 911,644.47 and 292,113.27 is: 438,264.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,631.76 : 911,644.47 = 292,113.27 : x
  2. Step 2: Convert to fraction form
    607,631.76/911,644.47 = 292,113.27/x
  3. Step 3: Cross multiply
    607,631.76x = 911,644.47 × 292,113.27
  4. Step 4: Simplify right side
    607,631.76x = 266,303,447,209.12
  5. Step 5: Solve for x
    x = 266,303,447,209.12/607,631.76
  6. Step 6: Final answer
    x = 438,264.53

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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.