Home / 921,210.36-1,380,767.32-560,585.85

Finding the Fourth Proportional to 921,210.36, 1,380,767.32 and 560,585.85

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Solution

The fourth proportional to 921,210.36, 1,380,767.32 and 560,585.85 is: 840,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,210.36 : 1,380,767.32 = 560,585.85 : x
  2. Step 2: Convert to fraction form
    921,210.36/1,380,767.32 = 560,585.85/x
  3. Step 3: Cross multiply
    921,210.36x = 1,380,767.32 × 560,585.85
  4. Step 4: Simplify right side
    921,210.36x = 774,038,621,734.42
  5. Step 5: Solve for x
    x = 774,038,621,734.42/921,210.36
  6. Step 6: Final answer
    x = 840,240.90

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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.