Home / 640,461.26-883,882.29-353,975.18

Finding the Fourth Proportional to 640,461.26, 883,882.29 and 353,975.18

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Solution

The fourth proportional to 640,461.26, 883,882.29 and 353,975.18 is: 488,511.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,461.26 : 883,882.29 = 353,975.18 : x
  2. Step 2: Convert to fraction form
    640,461.26/883,882.29 = 353,975.18/x
  3. Step 3: Cross multiply
    640,461.26x = 883,882.29 × 353,975.18
  4. Step 4: Simplify right side
    640,461.26x = 312,872,392,701.56
  5. Step 5: Solve for x
    x = 312,872,392,701.56/640,461.26
  6. Step 6: Final answer
    x = 488,511.03

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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.