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Finding the Fourth Proportional to 424,986.76, 634,370.78 and 374,542.93

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Solution

The fourth proportional to 424,986.76, 634,370.78 and 374,542.93 is: 559,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,986.76 : 634,370.78 = 374,542.93 : x
  2. Step 2: Convert to fraction form
    424,986.76/634,370.78 = 374,542.93/x
  3. Step 3: Cross multiply
    424,986.76x = 634,370.78 × 374,542.93
  4. Step 4: Simplify right side
    424,986.76x = 237,599,092,376.91
  5. Step 5: Solve for x
    x = 237,599,092,376.91/424,986.76
  6. Step 6: Final answer
    x = 559,074.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.