Home / 1,128,033.15-1,556,688.32-644,597.13

Finding the Fourth Proportional to 1,128,033.15, 1,556,688.32 and 644,597.13

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Solution

The fourth proportional to 1,128,033.15, 1,556,688.32 and 644,597.13 is: 889,545.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,033.15 : 1,556,688.32 = 644,597.13 : x
  2. Step 2: Convert to fraction form
    1,128,033.15/1,556,688.32 = 644,597.13/x
  3. Step 3: Cross multiply
    1,128,033.15x = 1,556,688.32 × 644,597.13
  4. Step 4: Simplify right side
    1,128,033.15x = 1,003,436,820,153.54
  5. Step 5: Solve for x
    x = 1,003,436,820,153.54/1,128,033.15
  6. Step 6: Final answer
    x = 889,545.51

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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.