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Finding the Fourth Proportional to 942,509.20, 1,411,690.20 and 818,093.20

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Solution

The fourth proportional to 942,509.20, 1,411,690.20 and 818,093.20 is: 1,225,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,509.20 : 1,411,690.20 = 818,093.20 : x
  2. Step 2: Convert to fraction form
    942,509.20/1,411,690.20 = 818,093.20/x
  3. Step 3: Cross multiply
    942,509.20x = 1,411,690.20 × 818,093.20
  4. Step 4: Simplify right side
    942,509.20x = 1,154,894,153,126.64
  5. Step 5: Solve for x
    x = 1,154,894,153,126.64/942,509.20
  6. Step 6: Final answer
    x = 1,225,339.93

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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.