Home / 641,988,036.36-886,214,693.34-433,426,676.76

Finding the Fourth Proportional to 641,988,036.36, 886,214,693.34 and 433,426,676.76

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Solution

The fourth proportional to 641,988,036.36, 886,214,693.34 and 433,426,676.76 is: 598,311,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,988,036.36 : 886,214,693.34 = 433,426,676.76 : x
  2. Step 2: Convert to fraction form
    641,988,036.36/886,214,693.34 = 433,426,676.76/x
  3. Step 3: Cross multiply
    641,988,036.36x = 886,214,693.34 × 433,426,676.76
  4. Step 4: Simplify right side
    641,988,036.36x = 384,109,089,430,238,720
  5. Step 5: Solve for x
    x = 384,109,089,430,238,720/641,988,036.36
  6. Step 6: Final answer
    x = 598,311,911.87

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Double scale
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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.