Home / 461,312.38-692,083.78-128,885.50

Finding the Fourth Proportional to 461,312.38, 692,083.78 and 128,885.50

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Solution

The fourth proportional to 461,312.38, 692,083.78 and 128,885.50 is: 193,360.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,312.38 : 692,083.78 = 128,885.50 : x
  2. Step 2: Convert to fraction form
    461,312.38/692,083.78 = 128,885.50/x
  3. Step 3: Cross multiply
    461,312.38x = 692,083.78 × 128,885.50
  4. Step 4: Simplify right side
    461,312.38x = 89,199,564,027.19
  5. Step 5: Solve for x
    x = 89,199,564,027.19/461,312.38
  6. Step 6: Final answer
    x = 193,360.44

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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.