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Finding the Fourth Proportional to 562,176.84, 775,803.78 and 307,527.96

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Solution

The fourth proportional to 562,176.84, 775,803.78 and 307,527.96 is: 424,388.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,176.84 : 775,803.78 = 307,527.96 : x
  2. Step 2: Convert to fraction form
    562,176.84/775,803.78 = 307,527.96/x
  3. Step 3: Cross multiply
    562,176.84x = 775,803.78 × 307,527.96
  4. Step 4: Simplify right side
    562,176.84x = 238,581,353,823.69
  5. Step 5: Solve for x
    x = 238,581,353,823.69/562,176.84
  6. Step 6: Final answer
    x = 424,388.44

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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.