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Finding the Fourth Proportional to 1,356,148, 1,871,571.72 and 752,536

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Solution

The fourth proportional to 1,356,148, 1,871,571.72 and 752,536 is: 1,038,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,148 : 1,871,571.72 = 752,536 : x
  2. Step 2: Convert to fraction form
    1,356,148/1,871,571.72 = 752,536/x
  3. Step 3: Cross multiply
    1,356,148x = 1,871,571.72 × 752,536
  4. Step 4: Simplify right side
    1,356,148x = 1,408,425,095,881.92
  5. Step 5: Solve for x
    x = 1,408,425,095,881.92/1,356,148
  6. Step 6: Final answer
    x = 1,038,548.22

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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.