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Finding the Fourth Proportional to 562,041.53, 775,598.09 and 320,401.93

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Solution

The fourth proportional to 562,041.53, 775,598.09 and 320,401.93 is: 442,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,041.53 : 775,598.09 = 320,401.93 : x
  2. Step 2: Convert to fraction form
    562,041.53/775,598.09 = 320,401.93/x
  3. Step 3: Cross multiply
    562,041.53x = 775,598.09 × 320,401.93
  4. Step 4: Simplify right side
    562,041.53x = 248,503,121,863.33
  5. Step 5: Solve for x
    x = 248,503,121,863.33/562,041.53
  6. Step 6: Final answer
    x = 442,143.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.