Home / 1,421,979.34-2,133,072.81-411,106.60

Finding the Fourth Proportional to 1,421,979.34, 2,133,072.81 and 411,106.60

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Solution

The fourth proportional to 1,421,979.34, 2,133,072.81 and 411,106.60 is: 616,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,979.34 : 2,133,072.81 = 411,106.60 : x
  2. Step 2: Convert to fraction form
    1,421,979.34/2,133,072.81 = 411,106.60/x
  3. Step 3: Cross multiply
    1,421,979.34x = 2,133,072.81 × 411,106.60
  4. Step 4: Simplify right side
    1,421,979.34x = 876,920,310,471.55
  5. Step 5: Solve for x
    x = 876,920,310,471.55/1,421,979.34
  6. Step 6: Final answer
    x = 616,689.91

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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.