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Finding the Fourth Proportional to 489,374.10, 734,061.15 and 489,374.10

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Solution

The fourth proportional to 489,374.10, 734,061.15 and 489,374.10 is: 734,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,374.10 : 734,061.15 = 489,374.10 : x
  2. Step 2: Convert to fraction form
    489,374.10/734,061.15 = 489,374.10/x
  3. Step 3: Cross multiply
    489,374.10x = 734,061.15 × 489,374.10
  4. Step 4: Simplify right side
    489,374.10x = 359,230,514,626.22
  5. Step 5: Solve for x
    x = 359,230,514,626.22/489,374.10
  6. Step 6: Final answer
    x = 734,061.15

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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.