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Finding the Fourth Proportional to 417,655.62, 576,066.93 and 383,311.01

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Solution

The fourth proportional to 417,655.62, 576,066.93 and 383,311.01 is: 528,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,655.62 : 576,066.93 = 383,311.01 : x
  2. Step 2: Convert to fraction form
    417,655.62/576,066.93 = 383,311.01/x
  3. Step 3: Cross multiply
    417,655.62x = 576,066.93 × 383,311.01
  4. Step 4: Simplify right side
    417,655.62x = 220,812,796,765.90
  5. Step 5: Solve for x
    x = 220,812,796,765.90/417,655.62
  6. Step 6: Final answer
    x = 528,695.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.