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Finding the Fourth Proportional to 520,088.20, 730,223 and 520,088.20

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Solution

The fourth proportional to 520,088.20, 730,223 and 520,088.20 is: 730,223

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,088.20 : 730,223 = 520,088.20 : x
  2. Step 2: Convert to fraction form
    520,088.20/730,223 = 520,088.20/x
  3. Step 3: Cross multiply
    520,088.20x = 730,223 × 520,088.20
  4. Step 4: Simplify right side
    520,088.20x = 379,780,365,668.60
  5. Step 5: Solve for x
    x = 379,780,365,668.60/520,088.20
  6. Step 6: Final answer
    x = 730,223

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.