Home / 1,038,892.10-1,558,014.15-407,999.30

Finding the Fourth Proportional to 1,038,892.10, 1,558,014.15 and 407,999.30

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Solution

The fourth proportional to 1,038,892.10, 1,558,014.15 and 407,999.30 is: 611,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,892.10 : 1,558,014.15 = 407,999.30 : x
  2. Step 2: Convert to fraction form
    1,038,892.10/1,558,014.15 = 407,999.30/x
  3. Step 3: Cross multiply
    1,038,892.10x = 1,558,014.15 × 407,999.30
  4. Step 4: Simplify right side
    1,038,892.10x = 635,668,682,590.10
  5. Step 5: Solve for x
    x = 635,668,682,590.10/1,038,892.10
  6. Step 6: Final answer
    x = 611,871.71

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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.