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Finding the Fourth Proportional to 529,212.16, 730,197.48 and 314,423.92

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Solution

The fourth proportional to 529,212.16, 730,197.48 and 314,423.92 is: 433,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,212.16 : 730,197.48 = 314,423.92 : x
  2. Step 2: Convert to fraction form
    529,212.16/730,197.48 = 314,423.92/x
  3. Step 3: Cross multiply
    529,212.16x = 730,197.48 × 314,423.92
  4. Step 4: Simplify right side
    529,212.16x = 229,591,554,035.72
  5. Step 5: Solve for x
    x = 229,591,554,035.72/529,212.16
  6. Step 6: Final answer
    x = 433,836.51

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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.