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Finding the Fourth Proportional to 402,084.39, 554,920.77 and 230,018.22

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Solution

The fourth proportional to 402,084.39, 554,920.77 and 230,018.22 is: 317,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,084.39 : 554,920.77 = 230,018.22 : x
  2. Step 2: Convert to fraction form
    402,084.39/554,920.77 = 230,018.22/x
  3. Step 3: Cross multiply
    402,084.39x = 554,920.77 × 230,018.22
  4. Step 4: Simplify right side
    402,084.39x = 127,641,887,756.43
  5. Step 5: Solve for x
    x = 127,641,887,756.43/402,084.39
  6. Step 6: Final answer
    x = 317,450.49

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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.