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Finding the Fourth Proportional to 609,993, 841,588.68 and 368,183.76

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Solution

The fourth proportional to 609,993, 841,588.68 and 368,183.76 is: 507,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,993 : 841,588.68 = 368,183.76 : x
  2. Step 2: Convert to fraction form
    609,993/841,588.68 = 368,183.76/x
  3. Step 3: Cross multiply
    609,993x = 841,588.68 × 368,183.76
  4. Step 4: Simplify right side
    609,993x = 309,859,284,575.84
  5. Step 5: Solve for x
    x = 309,859,284,575.84/609,993
  6. Step 6: Final answer
    x = 507,971.87

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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.