Home / 651,983.49-899,524.53-379,989.18

Finding the Fourth Proportional to 651,983.49, 899,524.53 and 379,989.18

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Solution

The fourth proportional to 651,983.49, 899,524.53 and 379,989.18 is: 524,261.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,983.49 : 899,524.53 = 379,989.18 : x
  2. Step 2: Convert to fraction form
    651,983.49/899,524.53 = 379,989.18/x
  3. Step 3: Cross multiply
    651,983.49x = 899,524.53 × 379,989.18
  4. Step 4: Simplify right side
    651,983.49x = 341,809,588,544.59
  5. Step 5: Solve for x
    x = 341,809,588,544.59/651,983.49
  6. Step 6: Final answer
    x = 524,261.11

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Double scale
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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.