Home / 766,485.83-1,057,751.45-417,624.59

Finding the Fourth Proportional to 766,485.83, 1,057,751.45 and 417,624.59

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Solution

The fourth proportional to 766,485.83, 1,057,751.45 and 417,624.59 is: 576,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,485.83 : 1,057,751.45 = 417,624.59 : x
  2. Step 2: Convert to fraction form
    766,485.83/1,057,751.45 = 417,624.59/x
  3. Step 3: Cross multiply
    766,485.83x = 1,057,751.45 × 417,624.59
  4. Step 4: Simplify right side
    766,485.83x = 441,743,017,750.50
  5. Step 5: Solve for x
    x = 441,743,017,750.50/766,485.83
  6. Step 6: Final answer
    x = 576,322.48

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Double scale
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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.