Home / 1,210,569.80-1,670,565.94-666,756.23

Finding the Fourth Proportional to 1,210,569.80, 1,670,565.94 and 666,756.23

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Solution

The fourth proportional to 1,210,569.80, 1,670,565.94 and 666,756.23 is: 920,112.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,569.80 : 1,670,565.94 = 666,756.23 : x
  2. Step 2: Convert to fraction form
    1,210,569.80/1,670,565.94 = 666,756.23/x
  3. Step 3: Cross multiply
    1,210,569.80x = 1,670,565.94 × 666,756.23
  4. Step 4: Simplify right side
    1,210,569.80x = 1,113,860,238,101.09
  5. Step 5: Solve for x
    x = 1,113,860,238,101.09/1,210,569.80
  6. Step 6: Final answer
    x = 920,112.37

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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.