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Finding the Fourth Proportional to 562,313.78, 775,973.72 and 320,674.13

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Solution

The fourth proportional to 562,313.78, 775,973.72 and 320,674.13 is: 442,519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,313.78 : 775,973.72 = 320,674.13 : x
  2. Step 2: Convert to fraction form
    562,313.78/775,973.72 = 320,674.13/x
  3. Step 3: Cross multiply
    562,313.78x = 775,973.72 × 320,674.13
  4. Step 4: Simplify right side
    562,313.78x = 248,834,693,684.00
  5. Step 5: Solve for x
    x = 248,834,693,684.00/562,313.78
  6. Step 6: Final answer
    x = 442,519.29

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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.