Home / 648,636.98-972,955.44-193,235.10

Finding the Fourth Proportional to 648,636.98, 972,955.44 and 193,235.10

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Solution

The fourth proportional to 648,636.98, 972,955.44 and 193,235.10 is: 289,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,636.98 : 972,955.44 = 193,235.10 : x
  2. Step 2: Convert to fraction form
    648,636.98/972,955.44 = 193,235.10/x
  3. Step 3: Cross multiply
    648,636.98x = 972,955.44 × 193,235.10
  4. Step 4: Simplify right side
    648,636.98x = 188,009,141,743.94
  5. Step 5: Solve for x
    x = 188,009,141,743.94/648,636.98
  6. Step 6: Final answer
    x = 289,852.64

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Double scale
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Similar ratio
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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.