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Finding the Fourth Proportional to 630,071.10, 944,860.95 and 274,842.90

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Solution

The fourth proportional to 630,071.10, 944,860.95 and 274,842.90 is: 412,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,071.10 : 944,860.95 = 274,842.90 : x
  2. Step 2: Convert to fraction form
    630,071.10/944,860.95 = 274,842.90/x
  3. Step 3: Cross multiply
    630,071.10x = 944,860.95 × 274,842.90
  4. Step 4: Simplify right side
    630,071.10x = 259,688,323,594.76
  5. Step 5: Solve for x
    x = 259,688,323,594.76/630,071.10
  6. Step 6: Final answer
    x = 412,157.17

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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.