Home / 829,603.40-1,244,405.10-356,208.20

Finding the Fourth Proportional to 829,603.40, 1,244,405.10 and 356,208.20

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Solution

The fourth proportional to 829,603.40, 1,244,405.10 and 356,208.20 is: 534,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,603.40 : 1,244,405.10 = 356,208.20 : x
  2. Step 2: Convert to fraction form
    829,603.40/1,244,405.10 = 356,208.20/x
  3. Step 3: Cross multiply
    829,603.40x = 1,244,405.10 × 356,208.20
  4. Step 4: Simplify right side
    829,603.40x = 443,267,300,741.82
  5. Step 5: Solve for x
    x = 443,267,300,741.82/829,603.40
  6. Step 6: Final answer
    x = 534,312.30

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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.