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Finding the Fourth Proportional to 571,430.22, 788,414.07 and 450,195.76

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Solution

The fourth proportional to 571,430.22, 788,414.07 and 450,195.76 is: 621,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,430.22 : 788,414.07 = 450,195.76 : x
  2. Step 2: Convert to fraction form
    571,430.22/788,414.07 = 450,195.76/x
  3. Step 3: Cross multiply
    571,430.22x = 788,414.07 × 450,195.76
  4. Step 4: Simplify right side
    571,430.22x = 354,940,671,438.34
  5. Step 5: Solve for x
    x = 354,940,671,438.34/571,430.22
  6. Step 6: Final answer
    x = 621,144.38

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Double scale
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Similar ratio
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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.