Home / 388,349.17-536,087.70-261,098.57

Finding the Fourth Proportional to 388,349.17, 536,087.70 and 261,098.57

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Solution

The fourth proportional to 388,349.17, 536,087.70 and 261,098.57 is: 360,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,349.17 : 536,087.70 = 261,098.57 : x
  2. Step 2: Convert to fraction form
    388,349.17/536,087.70 = 261,098.57/x
  3. Step 3: Cross multiply
    388,349.17x = 536,087.70 × 261,098.57
  4. Step 4: Simplify right side
    388,349.17x = 139,971,731,864.59
  5. Step 5: Solve for x
    x = 139,971,731,864.59/388,349.17
  6. Step 6: Final answer
    x = 360,427.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.