Home / 1,223,151.81-1,688,005.58-679,290.09

Finding the Fourth Proportional to 1,223,151.81, 1,688,005.58 and 679,290.09

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Solution

The fourth proportional to 1,223,151.81, 1,688,005.58 and 679,290.09 is: 937,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,151.81 : 1,688,005.58 = 679,290.09 : x
  2. Step 2: Convert to fraction form
    1,223,151.81/1,688,005.58 = 679,290.09/x
  3. Step 3: Cross multiply
    1,223,151.81x = 1,688,005.58 × 679,290.09
  4. Step 4: Simplify right side
    1,223,151.81x = 1,146,645,458,962.25
  5. Step 5: Solve for x
    x = 1,146,645,458,962.25/1,223,151.81
  6. Step 6: Final answer
    x = 937,451.47

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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.