Home / 457,541.64-686,312.43-125,117.64

Finding the Fourth Proportional to 457,541.64, 686,312.43 and 125,117.64

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Solution

The fourth proportional to 457,541.64, 686,312.43 and 125,117.64 is: 187,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,541.64 : 686,312.43 = 125,117.64 : x
  2. Step 2: Convert to fraction form
    457,541.64/686,312.43 = 125,117.64/x
  3. Step 3: Cross multiply
    457,541.64x = 686,312.43 × 125,117.64
  4. Step 4: Simplify right side
    457,541.64x = 85,869,791,544.27
  5. Step 5: Solve for x
    x = 85,869,791,544.27/457,541.64
  6. Step 6: Final answer
    x = 187,676.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.