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Finding the Fourth Proportional to 608,154.12, 839,385.91 and 353,652.12

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Solution

The fourth proportional to 608,154.12, 839,385.91 and 353,652.12 is: 488,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,154.12 : 839,385.91 = 353,652.12 : x
  2. Step 2: Convert to fraction form
    608,154.12/839,385.91 = 353,652.12/x
  3. Step 3: Cross multiply
    608,154.12x = 839,385.91 × 353,652.12
  4. Step 4: Simplify right side
    608,154.12x = 296,850,606,569.63
  5. Step 5: Solve for x
    x = 296,850,606,569.63/608,154.12
  6. Step 6: Final answer
    x = 488,117.40

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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.