Home / 1,220,111.40-1,830,167.10-983,915.40

Finding the Fourth Proportional to 1,220,111.40, 1,830,167.10 and 983,915.40

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Solution

The fourth proportional to 1,220,111.40, 1,830,167.10 and 983,915.40 is: 1,475,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,111.40 : 1,830,167.10 = 983,915.40 : x
  2. Step 2: Convert to fraction form
    1,220,111.40/1,830,167.10 = 983,915.40/x
  3. Step 3: Cross multiply
    1,220,111.40x = 1,830,167.10 × 983,915.40
  4. Step 4: Simplify right side
    1,220,111.40x = 1,800,729,594,263.34
  5. Step 5: Solve for x
    x = 1,800,729,594,263.34/1,220,111.40
  6. Step 6: Final answer
    x = 1,475,873.10

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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.