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Finding the Fourth Proportional to 1,495.03, 2,242.80 and 507.74

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Solution

The fourth proportional to 1,495.03, 2,242.80 and 507.74 is: 761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.03 : 2,242.80 = 507.74 : x
  2. Step 2: Convert to fraction form
    1,495.03/2,242.80 = 507.74/x
  3. Step 3: Cross multiply
    1,495.03x = 2,242.80 × 507.74
  4. Step 4: Simplify right side
    1,495.03x = 1,138,752.40
  5. Step 5: Solve for x
    x = 1,138,752.40/1,495.03
  6. Step 6: Final answer
    x = 761.69

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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.