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Finding the Fourth Proportional to 1,295,619.88, 1,943,782.88 and 397,041.72

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Solution

The fourth proportional to 1,295,619.88, 1,943,782.88 and 397,041.72 is: 595,670.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,619.88 : 1,943,782.88 = 397,041.72 : x
  2. Step 2: Convert to fraction form
    1,295,619.88/1,943,782.88 = 397,041.72/x
  3. Step 3: Cross multiply
    1,295,619.88x = 1,943,782.88 × 397,041.72
  4. Step 4: Simplify right side
    1,295,619.88x = 771,762,897,981.75
  5. Step 5: Solve for x
    x = 771,762,897,981.75/1,295,619.88
  6. Step 6: Final answer
    x = 595,670.77

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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.