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Finding the Fourth Proportional to 411,688.70, 617,533.05 and 175,039.10

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Solution

The fourth proportional to 411,688.70, 617,533.05 and 175,039.10 is: 262,558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,688.70 : 617,533.05 = 175,039.10 : x
  2. Step 2: Convert to fraction form
    411,688.70/617,533.05 = 175,039.10/x
  3. Step 3: Cross multiply
    411,688.70x = 617,533.05 × 175,039.10
  4. Step 4: Simplify right side
    411,688.70x = 108,092,429,292.26
  5. Step 5: Solve for x
    x = 108,092,429,292.26/411,688.70
  6. Step 6: Final answer
    x = 262,558.65

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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.