Home / 1,086,821.40-1,630,232.10-666,334.20

Finding the Fourth Proportional to 1,086,821.40, 1,630,232.10 and 666,334.20

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Solution

The fourth proportional to 1,086,821.40, 1,630,232.10 and 666,334.20 is: 999,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,821.40 : 1,630,232.10 = 666,334.20 : x
  2. Step 2: Convert to fraction form
    1,086,821.40/1,630,232.10 = 666,334.20/x
  3. Step 3: Cross multiply
    1,086,821.40x = 1,630,232.10 × 666,334.20
  4. Step 4: Simplify right side
    1,086,821.40x = 1,086,279,402,167.82
  5. Step 5: Solve for x
    x = 1,086,279,402,167.82/1,086,821.40
  6. Step 6: Final answer
    x = 999,501.30

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Half scale
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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.