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Finding the Fourth Proportional to 520,120.92, 716,668.38 and 462,915.48

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Solution

The fourth proportional to 520,120.92, 716,668.38 and 462,915.48 is: 637,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,120.92 : 716,668.38 = 462,915.48 : x
  2. Step 2: Convert to fraction form
    520,120.92/716,668.38 = 462,915.48/x
  3. Step 3: Cross multiply
    520,120.92x = 716,668.38 × 462,915.48
  4. Step 4: Simplify right side
    520,120.92x = 331,756,887,128.52
  5. Step 5: Solve for x
    x = 331,756,887,128.52/520,120.92
  6. Step 6: Final answer
    x = 637,845.69

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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.