Home / 1,658,919.15-2,488,378.73-819,111.15

Finding the Fourth Proportional to 1,658,919.15, 2,488,378.73 and 819,111.15

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Solution

The fourth proportional to 1,658,919.15, 2,488,378.73 and 819,111.15 is: 1,228,666.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658,919.15 : 2,488,378.73 = 819,111.15 : x
  2. Step 2: Convert to fraction form
    1,658,919.15/2,488,378.73 = 819,111.15/x
  3. Step 3: Cross multiply
    1,658,919.15x = 2,488,378.73 × 819,111.15
  4. Step 4: Simplify right side
    1,658,919.15x = 2,038,258,759,070.28
  5. Step 5: Solve for x
    x = 2,038,258,759,070.28/1,658,919.15
  6. Step 6: Final answer
    x = 1,228,666.73

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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.