Home / 385,696.08-578,527.20-105,212.40

Finding the Fourth Proportional to 385,696.08, 578,527.20 and 105,212.40

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Solution

The fourth proportional to 385,696.08, 578,527.20 and 105,212.40 is: 157,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,696.08 : 578,527.20 = 105,212.40 : x
  2. Step 2: Convert to fraction form
    385,696.08/578,527.20 = 105,212.40/x
  3. Step 3: Cross multiply
    385,696.08x = 578,527.20 × 105,212.40
  4. Step 4: Simplify right side
    385,696.08x = 60,868,235,177.28
  5. Step 5: Solve for x
    x = 60,868,235,177.28/385,696.08
  6. Step 6: Final answer
    x = 157,813.98

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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.