Home / 651,424.40-977,136.60-277,485.20

Finding the Fourth Proportional to 651,424.40, 977,136.60 and 277,485.20

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Solution

The fourth proportional to 651,424.40, 977,136.60 and 277,485.20 is: 416,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,424.40 : 977,136.60 = 277,485.20 : x
  2. Step 2: Convert to fraction form
    651,424.40/977,136.60 = 277,485.20/x
  3. Step 3: Cross multiply
    651,424.40x = 977,136.60 × 277,485.20
  4. Step 4: Simplify right side
    651,424.40x = 271,140,944,878.32
  5. Step 5: Solve for x
    x = 271,140,944,878.32/651,424.40
  6. Step 6: Final answer
    x = 416,227.80

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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.