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Finding the Fourth Proportional to 559,613.75, 772,244.48 and 304,959.47

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Solution

The fourth proportional to 559,613.75, 772,244.48 and 304,959.47 is: 420,831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,613.75 : 772,244.48 = 304,959.47 : x
  2. Step 2: Convert to fraction form
    559,613.75/772,244.48 = 304,959.47/x
  3. Step 3: Cross multiply
    559,613.75x = 772,244.48 × 304,959.47
  4. Step 4: Simplify right side
    559,613.75x = 235,503,264,232.40
  5. Step 5: Solve for x
    x = 235,503,264,232.40/559,613.75
  6. Step 6: Final answer
    x = 420,831.81

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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.