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Finding the Fourth Proportional to 522,374.40, 721,030.68 and 341,114.67

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Solution

The fourth proportional to 522,374.40, 721,030.68 and 341,114.67 is: 470,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,374.40 : 721,030.68 = 341,114.67 : x
  2. Step 2: Convert to fraction form
    522,374.40/721,030.68 = 341,114.67/x
  3. Step 3: Cross multiply
    522,374.40x = 721,030.68 × 341,114.67
  4. Step 4: Simplify right side
    522,374.40x = 245,954,142,468.08
  5. Step 5: Solve for x
    x = 245,954,142,468.08/522,374.40
  6. Step 6: Final answer
    x = 470,838.81

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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.