Home / 679,733.78-938,056.70-373,833.81

Finding the Fourth Proportional to 679,733.78, 938,056.70 and 373,833.81

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Solution

The fourth proportional to 679,733.78, 938,056.70 and 373,833.81 is: 515,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,733.78 : 938,056.70 = 373,833.81 : x
  2. Step 2: Convert to fraction form
    679,733.78/938,056.70 = 373,833.81/x
  3. Step 3: Cross multiply
    679,733.78x = 938,056.70 × 373,833.81
  4. Step 4: Simplify right side
    679,733.78x = 350,677,311,792.55
  5. Step 5: Solve for x
    x = 350,677,311,792.55/679,733.78
  6. Step 6: Final answer
    x = 515,903.91

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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.