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Finding the Fourth Proportional to 639,527.49, 882,550.76 and 353,049.93

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Solution

The fourth proportional to 639,527.49, 882,550.76 and 353,049.93 is: 487,210.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,527.49 : 882,550.76 = 353,049.93 : x
  2. Step 2: Convert to fraction form
    639,527.49/882,550.76 = 353,049.93/x
  3. Step 3: Cross multiply
    639,527.49x = 882,550.76 × 353,049.93
  4. Step 4: Simplify right side
    639,527.49x = 311,584,484,039.45
  5. Step 5: Solve for x
    x = 311,584,484,039.45/639,527.49
  6. Step 6: Final answer
    x = 487,210.46

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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.