Home / 639,524.80-882,547.05-353,047.24

Finding the Fourth Proportional to 639,524.80, 882,547.05 and 353,047.24

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Solution

The fourth proportional to 639,524.80, 882,547.05 and 353,047.24 is: 487,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,524.80 : 882,547.05 = 353,047.24 : x
  2. Step 2: Convert to fraction form
    639,524.80/882,547.05 = 353,047.24/x
  3. Step 3: Cross multiply
    639,524.80x = 882,547.05 × 353,047.24
  4. Step 4: Simplify right side
    639,524.80x = 311,580,800,172.64
  5. Step 5: Solve for x
    x = 311,580,800,172.64/639,524.80
  6. Step 6: Final answer
    x = 487,206.75

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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.