Home / 1,280,085.69-1,919,000.61-522,563.58

Finding the Fourth Proportional to 1,280,085.69, 1,919,000.61 and 522,563.58

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Solution

The fourth proportional to 1,280,085.69, 1,919,000.61 and 522,563.58 is: 783,384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,085.69 : 1,919,000.61 = 522,563.58 : x
  2. Step 2: Convert to fraction form
    1,280,085.69/1,919,000.61 = 522,563.58/x
  3. Step 3: Cross multiply
    1,280,085.69x = 1,919,000.61 × 522,563.58
  4. Step 4: Simplify right side
    1,280,085.69x = 1,002,799,828,783.78
  5. Step 5: Solve for x
    x = 1,002,799,828,783.78/1,280,085.69
  6. Step 6: Final answer
    x = 783,384.92

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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.