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Finding the Fourth Proportional to 675,915.63, 932,765.40 and 374,109.63

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Solution

The fourth proportional to 675,915.63, 932,765.40 and 374,109.63 is: 516,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,915.63 : 932,765.40 = 374,109.63 : x
  2. Step 2: Convert to fraction form
    675,915.63/932,765.40 = 374,109.63/x
  3. Step 3: Cross multiply
    675,915.63x = 932,765.40 × 374,109.63
  4. Step 4: Simplify right side
    675,915.63x = 348,956,518,670.80
  5. Step 5: Solve for x
    x = 348,956,518,670.80/675,915.63
  6. Step 6: Final answer
    x = 516,272.30

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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.