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Finding the Fourth Proportional to 647,373.68, 971,200.72 and 248,014.50

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Solution

The fourth proportional to 647,373.68, 971,200.72 and 248,014.50 is: 372,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,373.68 : 971,200.72 = 248,014.50 : x
  2. Step 2: Convert to fraction form
    647,373.68/971,200.72 = 248,014.50/x
  3. Step 3: Cross multiply
    647,373.68x = 971,200.72 × 248,014.50
  4. Step 4: Simplify right side
    647,373.68x = 240,871,860,970.44
  5. Step 5: Solve for x
    x = 240,871,860,970.44/647,373.68
  6. Step 6: Final answer
    x = 372,075.46

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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.