Home / 1,124,021.25-1,551,188.78-640,508.35

Finding the Fourth Proportional to 1,124,021.25, 1,551,188.78 and 640,508.35

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Solution

The fourth proportional to 1,124,021.25, 1,551,188.78 and 640,508.35 is: 883,924.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,021.25 : 1,551,188.78 = 640,508.35 : x
  2. Step 2: Convert to fraction form
    1,124,021.25/1,551,188.78 = 640,508.35/x
  3. Step 3: Cross multiply
    1,124,021.25x = 1,551,188.78 × 640,508.35
  4. Step 4: Simplify right side
    1,124,021.25x = 993,549,366,016.31
  5. Step 5: Solve for x
    x = 993,549,366,016.31/1,124,021.25
  6. Step 6: Final answer
    x = 883,924.01

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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.