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Finding the Fourth Proportional to 608,118.84, 839,277 and 353,470.08

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Solution

The fourth proportional to 608,118.84, 839,277 and 353,470.08 is: 487,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,118.84 : 839,277 = 353,470.08 : x
  2. Step 2: Convert to fraction form
    608,118.84/839,277 = 353,470.08/x
  3. Step 3: Cross multiply
    608,118.84x = 839,277 × 353,470.08
  4. Step 4: Simplify right side
    608,118.84x = 296,659,308,332.16
  5. Step 5: Solve for x
    x = 296,659,308,332.16/608,118.84
  6. Step 6: Final answer
    x = 487,831.14

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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.