Home / 1,038,138.20-1,557,596.10-407,504.60

Finding the Fourth Proportional to 1,038,138.20, 1,557,596.10 and 407,504.60

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Solution

The fourth proportional to 1,038,138.20, 1,557,596.10 and 407,504.60 is: 611,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,138.20 : 1,557,596.10 = 407,504.60 : x
  2. Step 2: Convert to fraction form
    1,038,138.20/1,557,596.10 = 407,504.60/x
  3. Step 3: Cross multiply
    1,038,138.20x = 1,557,596.10 × 407,504.60
  4. Step 4: Simplify right side
    1,038,138.20x = 634,727,575,692.06
  5. Step 5: Solve for x
    x = 634,727,575,692.06/1,038,138.20
  6. Step 6: Final answer
    x = 611,409.52

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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.