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Finding the Fourth Proportional to 567,865.28, 783,709.08 and 424,376.48

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Solution

The fourth proportional to 567,865.28, 783,709.08 and 424,376.48 is: 585,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,865.28 : 783,709.08 = 424,376.48 : x
  2. Step 2: Convert to fraction form
    567,865.28/783,709.08 = 424,376.48/x
  3. Step 3: Cross multiply
    567,865.28x = 783,709.08 × 424,376.48
  4. Step 4: Simplify right side
    567,865.28x = 332,587,700,714.44
  5. Step 5: Solve for x
    x = 332,587,700,714.44/567,865.28
  6. Step 6: Final answer
    x = 585,680.64

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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.