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Finding the Fourth Proportional to 850,360, 1,173,394.56 and 487,765.12

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Solution

The fourth proportional to 850,360, 1,173,394.56 and 487,765.12 is: 673,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,360 : 1,173,394.56 = 487,765.12 : x
  2. Step 2: Convert to fraction form
    850,360/1,173,394.56 = 487,765.12/x
  3. Step 3: Cross multiply
    850,360x = 1,173,394.56 × 487,765.12
  4. Step 4: Simplify right side
    850,360x = 572,340,938,365.75
  5. Step 5: Solve for x
    x = 572,340,938,365.75/850,360
  6. Step 6: Final answer
    x = 673,057.22

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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.