Home / 812,779.98-1,121,586.90-450,182.34

Finding the Fourth Proportional to 812,779.98, 1,121,586.90 and 450,182.34

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Solution

The fourth proportional to 812,779.98, 1,121,586.90 and 450,182.34 is: 621,224.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,779.98 : 1,121,586.90 = 450,182.34 : x
  2. Step 2: Convert to fraction form
    812,779.98/1,121,586.90 = 450,182.34/x
  3. Step 3: Cross multiply
    812,779.98x = 1,121,586.90 × 450,182.34
  4. Step 4: Simplify right side
    812,779.98x = 504,918,615,155.35
  5. Step 5: Solve for x
    x = 504,918,615,155.35/812,779.98
  6. Step 6: Final answer
    x = 621,224.23

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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.