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Finding the Fourth Proportional to 1,192,985.16, 1,789,477.74 and 434,883.48

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Solution

The fourth proportional to 1,192,985.16, 1,789,477.74 and 434,883.48 is: 652,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,985.16 : 1,789,477.74 = 434,883.48 : x
  2. Step 2: Convert to fraction form
    1,192,985.16/1,789,477.74 = 434,883.48/x
  3. Step 3: Cross multiply
    1,192,985.16x = 1,789,477.74 × 434,883.48
  4. Step 4: Simplify right side
    1,192,985.16x = 778,214,306,953.74
  5. Step 5: Solve for x
    x = 778,214,306,953.74/1,192,985.16
  6. Step 6: Final answer
    x = 652,325.22

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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.