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Finding the Fourth Proportional to 1,974,392.76, 2,960,999.88 and 837,135.76

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Solution

The fourth proportional to 1,974,392.76, 2,960,999.88 and 837,135.76 is: 1,255,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,392.76 : 2,960,999.88 = 837,135.76 : x
  2. Step 2: Convert to fraction form
    1,974,392.76/2,960,999.88 = 837,135.76/x
  3. Step 3: Cross multiply
    1,974,392.76x = 2,960,999.88 × 837,135.76
  4. Step 4: Simplify right side
    1,974,392.76x = 2,478,758,884,903.71
  5. Step 5: Solve for x
    x = 2,478,758,884,903.71/1,974,392.76
  6. Step 6: Final answer
    x = 1,255,453.80

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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.