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Finding the Fourth Proportional to 411,411.51, 617,005.00 and 123,155.52

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Solution

The fourth proportional to 411,411.51, 617,005.00 and 123,155.52 is: 184,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,411.51 : 617,005.00 = 123,155.52 : x
  2. Step 2: Convert to fraction form
    411,411.51/617,005.00 = 123,155.52/x
  3. Step 3: Cross multiply
    411,411.51x = 617,005.00 × 123,155.52
  4. Step 4: Simplify right side
    411,411.51x = 75,987,571,309.71
  5. Step 5: Solve for x
    x = 75,987,571,309.71/411,411.51
  6. Step 6: Final answer
    x = 184,699.67

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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.