Home / 1,019,245.40-1,528,862.70-261,085.40

Finding the Fourth Proportional to 1,019,245.40, 1,528,862.70 and 261,085.40

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Solution

The fourth proportional to 1,019,245.40, 1,528,862.70 and 261,085.40 is: 391,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,245.40 : 1,528,862.70 = 261,085.40 : x
  2. Step 2: Convert to fraction form
    1,019,245.40/1,528,862.70 = 261,085.40/x
  3. Step 3: Cross multiply
    1,019,245.40x = 1,528,862.70 × 261,085.40
  4. Step 4: Simplify right side
    1,019,245.40x = 399,163,729,574.58
  5. Step 5: Solve for x
    x = 399,163,729,574.58/1,019,245.40
  6. Step 6: Final answer
    x = 391,626.72

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Double scale
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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.