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Finding the Fourth Proportional to 495,629.80, 744,027.90 and 492,130.60

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Solution

The fourth proportional to 495,629.80, 744,027.90 and 492,130.60 is: 738,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,629.80 : 744,027.90 = 492,130.60 : x
  2. Step 2: Convert to fraction form
    495,629.80/744,027.90 = 492,130.60/x
  3. Step 3: Cross multiply
    495,629.80x = 744,027.90 × 492,130.60
  4. Step 4: Simplify right side
    495,629.80x = 366,158,896,843.74
  5. Step 5: Solve for x
    x = 366,158,896,843.74/495,629.80
  6. Step 6: Final answer
    x = 738,774.98

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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.