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Finding the Fourth Proportional to 365,700.47, 504,721.76 and 210,623.00

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Solution

The fourth proportional to 365,700.47, 504,721.76 and 210,623.00 is: 290,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,700.47 : 504,721.76 = 210,623.00 : x
  2. Step 2: Convert to fraction form
    365,700.47/504,721.76 = 210,623.00/x
  3. Step 3: Cross multiply
    365,700.47x = 504,721.76 × 210,623.00
  4. Step 4: Simplify right side
    365,700.47x = 106,306,007,679.76
  5. Step 5: Solve for x
    x = 106,306,007,679.76/365,700.47
  6. Step 6: Final answer
    x = 290,691.48

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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.