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Finding the Fourth Proportional to 518,915.84, 716,076.06 and 292,546.76

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Solution

The fourth proportional to 518,915.84, 716,076.06 and 292,546.76 is: 403,698.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,915.84 : 716,076.06 = 292,546.76 : x
  2. Step 2: Convert to fraction form
    518,915.84/716,076.06 = 292,546.76/x
  3. Step 3: Cross multiply
    518,915.84x = 716,076.06 × 292,546.76
  4. Step 4: Simplify right side
    518,915.84x = 209,485,731,266.57
  5. Step 5: Solve for x
    x = 209,485,731,266.57/518,915.84
  6. Step 6: Final answer
    x = 403,698.86

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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.