Home / 818,355.56-1,226,746.01-419,184.32

Finding the Fourth Proportional to 818,355.56, 1,226,746.01 and 419,184.32

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Solution

The fourth proportional to 818,355.56, 1,226,746.01 and 419,184.32 is: 628,373.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,355.56 : 1,226,746.01 = 419,184.32 : x
  2. Step 2: Convert to fraction form
    818,355.56/1,226,746.01 = 419,184.32/x
  3. Step 3: Cross multiply
    818,355.56x = 1,226,746.01 × 419,184.32
  4. Step 4: Simplify right side
    818,355.56x = 514,232,686,928.79
  5. Step 5: Solve for x
    x = 514,232,686,928.79/818,355.56
  6. Step 6: Final answer
    x = 628,373.19

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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.