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Finding the Fourth Proportional to 374,740.80, 562,111.20 and 262,547.70

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Solution

The fourth proportional to 374,740.80, 562,111.20 and 262,547.70 is: 393,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,740.80 : 562,111.20 = 262,547.70 : x
  2. Step 2: Convert to fraction form
    374,740.80/562,111.20 = 262,547.70/x
  3. Step 3: Cross multiply
    374,740.80x = 562,111.20 × 262,547.70
  4. Step 4: Simplify right side
    374,740.80x = 147,581,002,704.24
  5. Step 5: Solve for x
    x = 147,581,002,704.24/374,740.80
  6. Step 6: Final answer
    x = 393,821.55

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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.