Home / 783,715.20-1,175,572.80-409,852.80

Finding the Fourth Proportional to 783,715.20, 1,175,572.80 and 409,852.80

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Solution

The fourth proportional to 783,715.20, 1,175,572.80 and 409,852.80 is: 614,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,715.20 : 1,175,572.80 = 409,852.80 : x
  2. Step 2: Convert to fraction form
    783,715.20/1,175,572.80 = 409,852.80/x
  3. Step 3: Cross multiply
    783,715.20x = 1,175,572.80 × 409,852.80
  4. Step 4: Simplify right side
    783,715.20x = 481,811,803,683.84
  5. Step 5: Solve for x
    x = 481,811,803,683.84/783,715.20
  6. Step 6: Final answer
    x = 614,779.20

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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.