Home / 579,836.80-869,841.60-205,828.48

Finding the Fourth Proportional to 579,836.80, 869,841.60 and 205,828.48

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Solution

The fourth proportional to 579,836.80, 869,841.60 and 205,828.48 is: 308,773.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,836.80 : 869,841.60 = 205,828.48 : x
  2. Step 2: Convert to fraction form
    579,836.80/869,841.60 = 205,828.48/x
  3. Step 3: Cross multiply
    579,836.80x = 869,841.60 × 205,828.48
  4. Step 4: Simplify right side
    579,836.80x = 179,038,174,368.77
  5. Step 5: Solve for x
    x = 179,038,174,368.77/579,836.80
  6. Step 6: Final answer
    x = 308,773.39

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1.5x scale

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.