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Finding the Fourth Proportional to 1,038,849.16, 1,558,766.88 and 719,492.49

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Solution

The fourth proportional to 1,038,849.16, 1,558,766.88 and 719,492.49 is: 1,079,580.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,849.16 : 1,558,766.88 = 719,492.49 : x
  2. Step 2: Convert to fraction form
    1,038,849.16/1,558,766.88 = 719,492.49/x
  3. Step 3: Cross multiply
    1,038,849.16x = 1,558,766.88 × 719,492.49
  4. Step 4: Simplify right side
    1,038,849.16x = 1,121,521,063,820.73
  5. Step 5: Solve for x
    x = 1,121,521,063,820.73/1,038,849.16
  6. Step 6: Final answer
    x = 1,079,580.28

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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.