Home / 385,810.41-579,088.35-186,270.96

Finding the Fourth Proportional to 385,810.41, 579,088.35 and 186,270.96

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Solution

The fourth proportional to 385,810.41, 579,088.35 and 186,270.96 is: 279,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,810.41 : 579,088.35 = 186,270.96 : x
  2. Step 2: Convert to fraction form
    385,810.41/579,088.35 = 186,270.96/x
  3. Step 3: Cross multiply
    385,810.41x = 579,088.35 × 186,270.96
  4. Step 4: Simplify right side
    385,810.41x = 107,867,342,879.32
  5. Step 5: Solve for x
    x = 107,867,342,879.32/385,810.41
  6. Step 6: Final answer
    x = 279,586.40

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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.