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Finding the Fourth Proportional to 466,784.96, 642,807.72 and 405,503.12

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Solution

The fourth proportional to 466,784.96, 642,807.72 and 405,503.12 is: 558,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,784.96 : 642,807.72 = 405,503.12 : x
  2. Step 2: Convert to fraction form
    466,784.96/642,807.72 = 405,503.12/x
  3. Step 3: Cross multiply
    466,784.96x = 642,807.72 × 405,503.12
  4. Step 4: Simplify right side
    466,784.96x = 260,660,536,020.09
  5. Step 5: Solve for x
    x = 260,660,536,020.09/466,784.96
  6. Step 6: Final answer
    x = 558,416.74

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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.