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Finding the Fourth Proportional to 675,176.74, 931,858.47 and 388,862.59

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Solution

The fourth proportional to 675,176.74, 931,858.47 and 388,862.59 is: 536,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,176.74 : 931,858.47 = 388,862.59 : x
  2. Step 2: Convert to fraction form
    675,176.74/931,858.47 = 388,862.59/x
  3. Step 3: Cross multiply
    675,176.74x = 931,858.47 × 388,862.59
  4. Step 4: Simplify right side
    675,176.74x = 362,364,898,157.64
  5. Step 5: Solve for x
    x = 362,364,898,157.64/675,176.74
  6. Step 6: Final answer
    x = 536,696.36

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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.