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Finding the Fourth Proportional to 477,763.53, 716,621.40 and 178,220.67

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Solution

The fourth proportional to 477,763.53, 716,621.40 and 178,220.67 is: 267,322.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,763.53 : 716,621.40 = 178,220.67 : x
  2. Step 2: Convert to fraction form
    477,763.53/716,621.40 = 178,220.67/x
  3. Step 3: Cross multiply
    477,763.53x = 716,621.40 × 178,220.67
  4. Step 4: Simplify right side
    477,763.53x = 127,716,746,044.34
  5. Step 5: Solve for x
    x = 127,716,746,044.34/477,763.53
  6. Step 6: Final answer
    x = 267,322.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.