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Finding the Fourth Proportional to 543,021.22, 746,712 and 471,276.67

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Solution

The fourth proportional to 543,021.22, 746,712 and 471,276.67 is: 648,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,021.22 : 746,712 = 471,276.67 : x
  2. Step 2: Convert to fraction form
    543,021.22/746,712 = 471,276.67/x
  3. Step 3: Cross multiply
    543,021.22x = 746,712 × 471,276.67
  4. Step 4: Simplify right side
    543,021.22x = 351,907,944,809.04
  5. Step 5: Solve for x
    x = 351,907,944,809.04/543,021.22
  6. Step 6: Final answer
    x = 648,055.60

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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.