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Finding the Fourth Proportional to 617,313.89, 926,137.22 and 257,365.10

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Solution

The fourth proportional to 617,313.89, 926,137.22 and 257,365.10 is: 386,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,313.89 : 926,137.22 = 257,365.10 : x
  2. Step 2: Convert to fraction form
    617,313.89/926,137.22 = 257,365.10/x
  3. Step 3: Cross multiply
    617,313.89x = 926,137.22 × 257,365.10
  4. Step 4: Simplify right side
    617,313.89x = 238,355,392,321.51
  5. Step 5: Solve for x
    x = 238,355,392,321.51/617,313.89
  6. Step 6: Final answer
    x = 386,117.01

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1.5x scale

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.