Home / 1,091,598.21-1,637,320.59-408,354.75

Finding the Fourth Proportional to 1,091,598.21, 1,637,320.59 and 408,354.75

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Solution

The fourth proportional to 1,091,598.21, 1,637,320.59 and 408,354.75 is: 612,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,598.21 : 1,637,320.59 = 408,354.75 : x
  2. Step 2: Convert to fraction form
    1,091,598.21/1,637,320.59 = 408,354.75/x
  3. Step 3: Cross multiply
    1,091,598.21x = 1,637,320.59 × 408,354.75
  4. Step 4: Simplify right side
    1,091,598.21x = 668,607,640,199.30
  5. Step 5: Solve for x
    x = 668,607,640,199.30/1,091,598.21
  6. Step 6: Final answer
    x = 612,503.42

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Double scale
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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.