Home / 1,217,603.63-1,680,178.55-824,336.55

Finding the Fourth Proportional to 1,217,603.63, 1,680,178.55 and 824,336.55

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Solution

The fourth proportional to 1,217,603.63, 1,680,178.55 and 824,336.55 is: 1,137,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,603.63 : 1,680,178.55 = 824,336.55 : x
  2. Step 2: Convert to fraction form
    1,217,603.63/1,680,178.55 = 824,336.55/x
  3. Step 3: Cross multiply
    1,217,603.63x = 1,680,178.55 × 824,336.55
  4. Step 4: Simplify right side
    1,217,603.63x = 1,385,032,585,169.32
  5. Step 5: Solve for x
    x = 1,385,032,585,169.32/1,217,603.63
  6. Step 6: Final answer
    x = 1,137,506.94

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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.