Home / 809,016.30-1,213,864.65-434,601.90

Finding the Fourth Proportional to 809,016.30, 1,213,864.65 and 434,601.90

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Solution

The fourth proportional to 809,016.30, 1,213,864.65 and 434,601.90 is: 652,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,016.30 : 1,213,864.65 = 434,601.90 : x
  2. Step 2: Convert to fraction form
    809,016.30/1,213,864.65 = 434,601.90/x
  3. Step 3: Cross multiply
    809,016.30x = 1,213,864.65 × 434,601.90
  4. Step 4: Simplify right side
    809,016.30x = 527,547,883,232.84
  5. Step 5: Solve for x
    x = 527,547,883,232.84/809,016.30
  6. Step 6: Final answer
    x = 652,085.60

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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.