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Finding the Fourth Proportional to 1,762,703.20, 2,639,907.60 and 1,762,703.20

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Solution

The fourth proportional to 1,762,703.20, 2,639,907.60 and 1,762,703.20 is: 2,639,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762,703.20 : 2,639,907.60 = 1,762,703.20 : x
  2. Step 2: Convert to fraction form
    1,762,703.20/2,639,907.60 = 1,762,703.20/x
  3. Step 3: Cross multiply
    1,762,703.20x = 2,639,907.60 × 1,762,703.20
  4. Step 4: Simplify right side
    1,762,703.20x = 4,653,373,574,224.32
  5. Step 5: Solve for x
    x = 4,653,373,574,224.32/1,762,703.20
  6. Step 6: Final answer
    x = 2,639,907.60

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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.