Home / 1,151,405.40-1,727,108.10-403,354.20

Finding the Fourth Proportional to 1,151,405.40, 1,727,108.10 and 403,354.20

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Solution

The fourth proportional to 1,151,405.40, 1,727,108.10 and 403,354.20 is: 605,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,405.40 : 1,727,108.10 = 403,354.20 : x
  2. Step 2: Convert to fraction form
    1,151,405.40/1,727,108.10 = 403,354.20/x
  3. Step 3: Cross multiply
    1,151,405.40x = 1,727,108.10 × 403,354.20
  4. Step 4: Simplify right side
    1,151,405.40x = 696,636,305,989.02
  5. Step 5: Solve for x
    x = 696,636,305,989.02/1,151,405.40
  6. Step 6: Final answer
    x = 605,031.30

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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.