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Finding the Fourth Proportional to 675,005.38, 931,473.20 and 373,141.06

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Solution

The fourth proportional to 675,005.38, 931,473.20 and 373,141.06 is: 514,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,005.38 : 931,473.20 = 373,141.06 : x
  2. Step 2: Convert to fraction form
    675,005.38/931,473.20 = 373,141.06/x
  3. Step 3: Cross multiply
    675,005.38x = 931,473.20 × 373,141.06
  4. Step 4: Simplify right side
    675,005.38x = 347,570,897,209.59
  5. Step 5: Solve for x
    x = 347,570,897,209.59/675,005.38
  6. Step 6: Final answer
    x = 514,915.74

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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.