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Finding the Fourth Proportional to 572,971.68, 790,698.27 and 314,864.67

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Solution

The fourth proportional to 572,971.68, 790,698.27 and 314,864.67 is: 434,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,971.68 : 790,698.27 = 314,864.67 : x
  2. Step 2: Convert to fraction form
    572,971.68/790,698.27 = 314,864.67/x
  3. Step 3: Cross multiply
    572,971.68x = 790,698.27 × 314,864.67
  4. Step 4: Simplify right side
    572,971.68x = 248,962,949,853.12
  5. Step 5: Solve for x
    x = 248,962,949,853.12/572,971.68
  6. Step 6: Final answer
    x = 434,511.79

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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.