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Finding the Fourth Proportional to 432,881.80, 649,322.70 and 359,153.80

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Solution

The fourth proportional to 432,881.80, 649,322.70 and 359,153.80 is: 538,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,881.80 : 649,322.70 = 359,153.80 : x
  2. Step 2: Convert to fraction form
    432,881.80/649,322.70 = 359,153.80/x
  3. Step 3: Cross multiply
    432,881.80x = 649,322.70 × 359,153.80
  4. Step 4: Simplify right side
    432,881.80x = 233,206,715,131.26
  5. Step 5: Solve for x
    x = 233,206,715,131.26/432,881.80
  6. Step 6: Final answer
    x = 538,730.70

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1.5x scale

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.