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Finding the Fourth Proportional to 611,954.79, 844,225.90 and 407,806.84

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Solution

The fourth proportional to 611,954.79, 844,225.90 and 407,806.84 is: 562,592.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,954.79 : 844,225.90 = 407,806.84 : x
  2. Step 2: Convert to fraction form
    611,954.79/844,225.90 = 407,806.84/x
  3. Step 3: Cross multiply
    611,954.79x = 844,225.90 × 407,806.84
  4. Step 4: Simplify right side
    611,954.79x = 344,281,096,525.16
  5. Step 5: Solve for x
    x = 344,281,096,525.16/611,954.79
  6. Step 6: Final answer
    x = 562,592.37

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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.