Home / 1,688,761.85-2,533,147.83-409,364.28

Finding the Fourth Proportional to 1,688,761.85, 2,533,147.83 and 409,364.28

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Solution

The fourth proportional to 1,688,761.85, 2,533,147.83 and 409,364.28 is: 614,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,761.85 : 2,533,147.83 = 409,364.28 : x
  2. Step 2: Convert to fraction form
    1,688,761.85/2,533,147.83 = 409,364.28/x
  3. Step 3: Cross multiply
    1,688,761.85x = 2,533,147.83 × 409,364.28
  4. Step 4: Simplify right side
    1,688,761.85x = 1,036,980,237,561.51
  5. Step 5: Solve for x
    x = 1,036,980,237,561.51/1,688,761.85
  6. Step 6: Final answer
    x = 614,047.65

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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.