Home / 679,868.66-938,220.62-373,976.39

Finding the Fourth Proportional to 679,868.66, 938,220.62 and 373,976.39

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Solution

The fourth proportional to 679,868.66, 938,220.62 and 373,976.39 is: 516,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,868.66 : 938,220.62 = 373,976.39 : x
  2. Step 2: Convert to fraction form
    679,868.66/938,220.62 = 373,976.39/x
  3. Step 3: Cross multiply
    679,868.66x = 938,220.62 × 373,976.39
  4. Step 4: Simplify right side
    679,868.66x = 350,872,355,332.59
  5. Step 5: Solve for x
    x = 350,872,355,332.59/679,868.66
  6. Step 6: Final answer
    x = 516,088.44

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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.