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Finding the Fourth Proportional to 470,670.51, 649,530.38 and 255,810.63

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Solution

The fourth proportional to 470,670.51, 649,530.38 and 255,810.63 is: 353,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,670.51 : 649,530.38 = 255,810.63 : x
  2. Step 2: Convert to fraction form
    470,670.51/649,530.38 = 255,810.63/x
  3. Step 3: Cross multiply
    470,670.51x = 649,530.38 × 255,810.63
  4. Step 4: Simplify right side
    470,670.51x = 166,156,776,351.47
  5. Step 5: Solve for x
    x = 166,156,776,351.47/470,670.51
  6. Step 6: Final answer
    x = 353,021.43

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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.