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Finding the Fourth Proportional to 562,738.34, 776,688.21 and 426,534.72

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Solution

The fourth proportional to 562,738.34, 776,688.21 and 426,534.72 is: 588,700.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,738.34 : 776,688.21 = 426,534.72 : x
  2. Step 2: Convert to fraction form
    562,738.34/776,688.21 = 426,534.72/x
  3. Step 3: Cross multiply
    562,738.34x = 776,688.21 × 426,534.72
  4. Step 4: Simplify right side
    562,738.34x = 331,284,482,163.54
  5. Step 5: Solve for x
    x = 331,284,482,163.54/562,738.34
  6. Step 6: Final answer
    x = 588,700.75

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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.