Home / 1,047,638-1,445,672.40-617,819.60

Finding the Fourth Proportional to 1,047,638, 1,445,672.40 and 617,819.60

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Solution

The fourth proportional to 1,047,638, 1,445,672.40 and 617,819.60 is: 852,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,638 : 1,445,672.40 = 617,819.60 : x
  2. Step 2: Convert to fraction form
    1,047,638/1,445,672.40 = 617,819.60/x
  3. Step 3: Cross multiply
    1,047,638x = 1,445,672.40 × 617,819.60
  4. Step 4: Simplify right side
    1,047,638x = 893,164,743,899.04
  5. Step 5: Solve for x
    x = 893,164,743,899.04/1,047,638
  6. Step 6: Final answer
    x = 852,550.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.