Home / 679,214.37-937,336.93-373,285.20

Finding the Fourth Proportional to 679,214.37, 937,336.93 and 373,285.20

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Solution

The fourth proportional to 679,214.37, 937,336.93 and 373,285.20 is: 515,145.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,214.37 : 937,336.93 = 373,285.20 : x
  2. Step 2: Convert to fraction form
    679,214.37/937,336.93 = 373,285.20/x
  3. Step 3: Cross multiply
    679,214.37x = 937,336.93 × 373,285.20
  4. Step 4: Simplify right side
    679,214.37x = 349,894,000,691.72
  5. Step 5: Solve for x
    x = 349,894,000,691.72/679,214.37
  6. Step 6: Final answer
    x = 515,145.17

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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.