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Finding the Fourth Proportional to 507,620.90, 761,212.65 and 254,803.70

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Solution

The fourth proportional to 507,620.90, 761,212.65 and 254,803.70 is: 382,095.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,620.90 : 761,212.65 = 254,803.70 : x
  2. Step 2: Convert to fraction form
    507,620.90/761,212.65 = 254,803.70/x
  3. Step 3: Cross multiply
    507,620.90x = 761,212.65 × 254,803.70
  4. Step 4: Simplify right side
    507,620.90x = 193,959,799,706.81
  5. Step 5: Solve for x
    x = 193,959,799,706.81/507,620.90
  6. Step 6: Final answer
    x = 382,095.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.