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Finding the Fourth Proportional to 1,624,536, 2,241,859.68 and 909,144

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Solution

The fourth proportional to 1,624,536, 2,241,859.68 and 909,144 is: 1,254,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624,536 : 2,241,859.68 = 909,144 : x
  2. Step 2: Convert to fraction form
    1,624,536/2,241,859.68 = 909,144/x
  3. Step 3: Cross multiply
    1,624,536x = 2,241,859.68 × 909,144
  4. Step 4: Simplify right side
    1,624,536x = 2,038,173,276,913.92
  5. Step 5: Solve for x
    x = 2,038,173,276,913.92/1,624,536
  6. Step 6: Final answer
    x = 1,254,618.72

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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.