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Finding the Fourth Proportional to 839,059.82, 1,157,892.10 and 457,078.40

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Solution

The fourth proportional to 839,059.82, 1,157,892.10 and 457,078.40 is: 630,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,059.82 : 1,157,892.10 = 457,078.40 : x
  2. Step 2: Convert to fraction form
    839,059.82/1,157,892.10 = 457,078.40/x
  3. Step 3: Cross multiply
    839,059.82x = 1,157,892.10 × 457,078.40
  4. Step 4: Simplify right side
    839,059.82x = 529,247,468,440.64
  5. Step 5: Solve for x
    x = 529,247,468,440.64/839,059.82
  6. Step 6: Final answer
    x = 630,762.50

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Double scale
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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.