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Finding the Fourth Proportional to 567,530.88, 783,221.58 and 312,881.46

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Solution

The fourth proportional to 567,530.88, 783,221.58 and 312,881.46 is: 431,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,530.88 : 783,221.58 = 312,881.46 : x
  2. Step 2: Convert to fraction form
    567,530.88/783,221.58 = 312,881.46/x
  3. Step 3: Cross multiply
    567,530.88x = 783,221.58 × 312,881.46
  4. Step 4: Simplify right side
    567,530.88x = 245,055,511,453.91
  5. Step 5: Solve for x
    x = 245,055,511,453.91/567,530.88
  6. Step 6: Final answer
    x = 431,792.38

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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.