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Finding the Fourth Proportional to 603,152.84, 903,351.18 and 287,831.18

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Solution

The fourth proportional to 603,152.84, 903,351.18 and 287,831.18 is: 431,089.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,152.84 : 903,351.18 = 287,831.18 : x
  2. Step 2: Convert to fraction form
    603,152.84/903,351.18 = 287,831.18/x
  3. Step 3: Cross multiply
    603,152.84x = 903,351.18 × 287,831.18
  4. Step 4: Simplify right side
    603,152.84x = 260,012,636,093.79
  5. Step 5: Solve for x
    x = 260,012,636,093.79/603,152.84
  6. Step 6: Final answer
    x = 431,089.14

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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.