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Finding the Fourth Proportional to 646,593.30, 892,326.33 and 360,113.40

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Solution

The fourth proportional to 646,593.30, 892,326.33 and 360,113.40 is: 496,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,593.30 : 892,326.33 = 360,113.40 : x
  2. Step 2: Convert to fraction form
    646,593.30/892,326.33 = 360,113.40/x
  3. Step 3: Cross multiply
    646,593.30x = 892,326.33 × 360,113.40
  4. Step 4: Simplify right side
    646,593.30x = 321,338,668,605.82
  5. Step 5: Solve for x
    x = 321,338,668,605.82/646,593.30
  6. Step 6: Final answer
    x = 496,971.85

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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.