Home / 461,529.90-636,911.85-257,580.81

Finding the Fourth Proportional to 461,529.90, 636,911.85 and 257,580.81

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Solution

The fourth proportional to 461,529.90, 636,911.85 and 257,580.81 is: 355,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,529.90 : 636,911.85 = 257,580.81 : x
  2. Step 2: Convert to fraction form
    461,529.90/636,911.85 = 257,580.81/x
  3. Step 3: Cross multiply
    461,529.90x = 636,911.85 × 257,580.81
  4. Step 4: Simplify right side
    461,529.90x = 164,056,270,221.60
  5. Step 5: Solve for x
    x = 164,056,270,221.60/461,529.90
  6. Step 6: Final answer
    x = 355,461.85

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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.