Home / 859,956.20-1,186,713.40-492,421.40

Finding the Fourth Proportional to 859,956.20, 1,186,713.40 and 492,421.40

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Solution

The fourth proportional to 859,956.20, 1,186,713.40 and 492,421.40 is: 679,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,956.20 : 1,186,713.40 = 492,421.40 : x
  2. Step 2: Convert to fraction form
    859,956.20/1,186,713.40 = 492,421.40/x
  3. Step 3: Cross multiply
    859,956.20x = 1,186,713.40 × 492,421.40
  4. Step 4: Simplify right side
    859,956.20x = 584,363,073,826.76
  5. Step 5: Solve for x
    x = 584,363,073,826.76/859,956.20
  6. Step 6: Final answer
    x = 679,526.55

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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.