Home / 649,965.80-975,179.44-290,103.89

Finding the Fourth Proportional to 649,965.80, 975,179.44 and 290,103.89

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Solution

The fourth proportional to 649,965.80, 975,179.44 and 290,103.89 is: 435,258.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,965.80 : 975,179.44 = 290,103.89 : x
  2. Step 2: Convert to fraction form
    649,965.80/975,179.44 = 290,103.89/x
  3. Step 3: Cross multiply
    649,965.80x = 975,179.44 × 290,103.89
  4. Step 4: Simplify right side
    649,965.80x = 282,903,349,964.14
  5. Step 5: Solve for x
    x = 282,903,349,964.14/649,965.80
  6. Step 6: Final answer
    x = 435,258.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.