Home / 1,211,136.12-1,817,059.45-358,230.25

Finding the Fourth Proportional to 1,211,136.12, 1,817,059.45 and 358,230.25

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Solution

The fourth proportional to 1,211,136.12, 1,817,059.45 and 358,230.25 is: 537,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,136.12 : 1,817,059.45 = 358,230.25 : x
  2. Step 2: Convert to fraction form
    1,211,136.12/1,817,059.45 = 358,230.25/x
  3. Step 3: Cross multiply
    1,211,136.12x = 1,817,059.45 × 358,230.25
  4. Step 4: Simplify right side
    1,211,136.12x = 650,925,661,038.36
  5. Step 5: Solve for x
    x = 650,925,661,038.36/1,211,136.12
  6. Step 6: Final answer
    x = 537,450.46

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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.