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Finding the Fourth Proportional to 617,525.40, 926,288.10 and 417,941.40

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Solution

The fourth proportional to 617,525.40, 926,288.10 and 417,941.40 is: 626,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,525.40 : 926,288.10 = 417,941.40 : x
  2. Step 2: Convert to fraction form
    617,525.40/926,288.10 = 417,941.40/x
  3. Step 3: Cross multiply
    617,525.40x = 926,288.10 × 417,941.40
  4. Step 4: Simplify right side
    617,525.40x = 387,134,145,317.34
  5. Step 5: Solve for x
    x = 387,134,145,317.34/617,525.40
  6. Step 6: Final answer
    x = 626,912.10

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Double scale
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Similar ratio
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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.