Home / 677,459.62-934,826.90-391,071.97

Finding the Fourth Proportional to 677,459.62, 934,826.90 and 391,071.97

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Solution

The fourth proportional to 677,459.62, 934,826.90 and 391,071.97 is: 539,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,459.62 : 934,826.90 = 391,071.97 : x
  2. Step 2: Convert to fraction form
    677,459.62/934,826.90 = 391,071.97/x
  3. Step 3: Cross multiply
    677,459.62x = 934,826.90 × 391,071.97
  4. Step 4: Simplify right side
    677,459.62x = 365,584,590,762.50
  5. Step 5: Solve for x
    x = 365,584,590,762.50/677,459.62
  6. Step 6: Final answer
    x = 539,640.42

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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.