Home / 566,271.41-781,454.70-311,622.59

Finding the Fourth Proportional to 566,271.41, 781,454.70 and 311,622.59

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Solution

The fourth proportional to 566,271.41, 781,454.70 and 311,622.59 is: 430,039.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,271.41 : 781,454.70 = 311,622.59 : x
  2. Step 2: Convert to fraction form
    566,271.41/781,454.70 = 311,622.59/x
  3. Step 3: Cross multiply
    566,271.41x = 781,454.70 × 311,622.59
  4. Step 4: Simplify right side
    566,271.41x = 243,518,939,535.31
  5. Step 5: Solve for x
    x = 243,518,939,535.31/566,271.41
  6. Step 6: Final answer
    x = 430,039.27

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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.