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Finding the Fourth Proportional to 453,313.40, 679,970.10 and 374,516.60

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Solution

The fourth proportional to 453,313.40, 679,970.10 and 374,516.60 is: 561,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,313.40 : 679,970.10 = 374,516.60 : x
  2. Step 2: Convert to fraction form
    453,313.40/679,970.10 = 374,516.60/x
  3. Step 3: Cross multiply
    453,313.40x = 679,970.10 × 374,516.60
  4. Step 4: Simplify right side
    453,313.40x = 254,660,089,953.66
  5. Step 5: Solve for x
    x = 254,660,089,953.66/453,313.40
  6. Step 6: Final answer
    x = 561,774.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.