Home / 912,700.11-1,366,953.95-455,889.20

Finding the Fourth Proportional to 912,700.11, 1,366,953.95 and 455,889.20

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Solution

The fourth proportional to 912,700.11, 1,366,953.95 and 455,889.20 is: 682,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,700.11 : 1,366,953.95 = 455,889.20 : x
  2. Step 2: Convert to fraction form
    912,700.11/1,366,953.95 = 455,889.20/x
  3. Step 3: Cross multiply
    912,700.11x = 1,366,953.95 × 455,889.20
  4. Step 4: Simplify right side
    912,700.11x = 623,179,542,702.34
  5. Step 5: Solve for x
    x = 623,179,542,702.34/912,700.11
  6. Step 6: Final answer
    x = 682,786.75

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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.