Home / 875,856.83-1,208,698.16-513,383.45

Finding the Fourth Proportional to 875,856.83, 1,208,698.16 and 513,383.45

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Solution

The fourth proportional to 875,856.83, 1,208,698.16 and 513,383.45 is: 708,478.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,856.83 : 1,208,698.16 = 513,383.45 : x
  2. Step 2: Convert to fraction form
    875,856.83/1,208,698.16 = 513,383.45/x
  3. Step 3: Cross multiply
    875,856.83x = 1,208,698.16 × 513,383.45
  4. Step 4: Simplify right side
    875,856.83x = 620,525,622,779.04
  5. Step 5: Solve for x
    x = 620,525,622,779.04/875,856.83
  6. Step 6: Final answer
    x = 708,478.38

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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.