Home / 497,000.24-685,819.90-279,197.08

Finding the Fourth Proportional to 497,000.24, 685,819.90 and 279,197.08

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Solution

The fourth proportional to 497,000.24, 685,819.90 and 279,197.08 is: 385,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,000.24 : 685,819.90 = 279,197.08 : x
  2. Step 2: Convert to fraction form
    497,000.24/685,819.90 = 279,197.08/x
  3. Step 3: Cross multiply
    497,000.24x = 685,819.90 × 279,197.08
  4. Step 4: Simplify right side
    497,000.24x = 191,478,911,073.35
  5. Step 5: Solve for x
    x = 191,478,911,073.35/497,000.24
  6. Step 6: Final answer
    x = 385,269.26

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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.