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Finding the Fourth Proportional to 579,728.61, 800,033.36 and 434,276.71

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Solution

The fourth proportional to 579,728.61, 800,033.36 and 434,276.71 is: 599,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,728.61 : 800,033.36 = 434,276.71 : x
  2. Step 2: Convert to fraction form
    579,728.61/800,033.36 = 434,276.71/x
  3. Step 3: Cross multiply
    579,728.61x = 800,033.36 × 434,276.71
  4. Step 4: Simplify right side
    579,728.61x = 347,435,851,299.58
  5. Step 5: Solve for x
    x = 347,435,851,299.58/579,728.61
  6. Step 6: Final answer
    x = 599,307.75

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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.