Home / 875,440.60-1,312,383.30-520,077.40

Finding the Fourth Proportional to 875,440.60, 1,312,383.30 and 520,077.40

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Solution

The fourth proportional to 875,440.60, 1,312,383.30 and 520,077.40 is: 779,654.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,440.60 : 1,312,383.30 = 520,077.40 : x
  2. Step 2: Convert to fraction form
    875,440.60/1,312,383.30 = 520,077.40/x
  3. Step 3: Cross multiply
    875,440.60x = 1,312,383.30 × 520,077.40
  4. Step 4: Simplify right side
    875,440.60x = 682,540,894,467.42
  5. Step 5: Solve for x
    x = 682,540,894,467.42/875,440.60
  6. Step 6: Final answer
    x = 779,654.15

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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.