Home / 923,443.40-1,385,165.10-292,406.60

Finding the Fourth Proportional to 923,443.40, 1,385,165.10 and 292,406.60

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Solution

The fourth proportional to 923,443.40, 1,385,165.10 and 292,406.60 is: 438,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,443.40 : 1,385,165.10 = 292,406.60 : x
  2. Step 2: Convert to fraction form
    923,443.40/1,385,165.10 = 292,406.60/x
  3. Step 3: Cross multiply
    923,443.40x = 1,385,165.10 × 292,406.60
  4. Step 4: Simplify right side
    923,443.40x = 405,031,417,329.66
  5. Step 5: Solve for x
    x = 405,031,417,329.66/923,443.40
  6. Step 6: Final answer
    x = 438,609.90

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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.