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Finding the Fourth Proportional to 586,262.12, 809,041.54 and 331,607.72

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Solution

The fourth proportional to 586,262.12, 809,041.54 and 331,607.72 is: 457,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,262.12 : 809,041.54 = 331,607.72 : x
  2. Step 2: Convert to fraction form
    586,262.12/809,041.54 = 331,607.72/x
  3. Step 3: Cross multiply
    586,262.12x = 809,041.54 × 331,607.72
  4. Step 4: Simplify right side
    586,262.12x = 268,284,420,464.69
  5. Step 5: Solve for x
    x = 268,284,420,464.69/586,262.12
  6. Step 6: Final answer
    x = 457,618.55

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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.