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Finding the Fourth Proportional to 371,610.40, 557,415.60 and 313,873.60

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Solution

The fourth proportional to 371,610.40, 557,415.60 and 313,873.60 is: 470,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,610.40 : 557,415.60 = 313,873.60 : x
  2. Step 2: Convert to fraction form
    371,610.40/557,415.60 = 313,873.60/x
  3. Step 3: Cross multiply
    371,610.40x = 557,415.60 × 313,873.60
  4. Step 4: Simplify right side
    371,610.40x = 174,958,041,068.16
  5. Step 5: Solve for x
    x = 174,958,041,068.16/371,610.40
  6. Step 6: Final answer
    x = 470,810.40

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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.