Home / 651,984.49-899,525.91-379,990.18

Finding the Fourth Proportional to 651,984.49, 899,525.91 and 379,990.18

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Solution

The fourth proportional to 651,984.49, 899,525.91 and 379,990.18 is: 524,262.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,984.49 : 899,525.91 = 379,990.18 : x
  2. Step 2: Convert to fraction form
    651,984.49/899,525.91 = 379,990.18/x
  3. Step 3: Cross multiply
    651,984.49x = 899,525.91 × 379,990.18
  4. Step 4: Simplify right side
    651,984.49x = 341,811,012,455.56
  5. Step 5: Solve for x
    x = 341,811,012,455.56/651,984.49
  6. Step 6: Final answer
    x = 524,262.49

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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.