Home / 695,144.89-959,077.02-389,176.30

Finding the Fourth Proportional to 695,144.89, 959,077.02 and 389,176.30

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Solution

The fourth proportional to 695,144.89, 959,077.02 and 389,176.30 is: 536,938.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,144.89 : 959,077.02 = 389,176.30 : x
  2. Step 2: Convert to fraction form
    695,144.89/959,077.02 = 389,176.30/x
  3. Step 3: Cross multiply
    695,144.89x = 959,077.02 × 389,176.30
  4. Step 4: Simplify right side
    695,144.89x = 373,250,046,058.63
  5. Step 5: Solve for x
    x = 373,250,046,058.63/695,144.89
  6. Step 6: Final answer
    x = 536,938.49

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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.