Home / 430,232.04-645,525.72-190,219.86

Finding the Fourth Proportional to 430,232.04, 645,525.72 and 190,219.86

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Solution

The fourth proportional to 430,232.04, 645,525.72 and 190,219.86 is: 285,408.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,232.04 : 645,525.72 = 190,219.86 : x
  2. Step 2: Convert to fraction form
    430,232.04/645,525.72 = 190,219.86/x
  3. Step 3: Cross multiply
    430,232.04x = 645,525.72 × 190,219.86
  4. Step 4: Simplify right side
    430,232.04x = 122,791,812,084.80
  5. Step 5: Solve for x
    x = 122,791,812,084.80/430,232.04
  6. Step 6: Final answer
    x = 285,408.34

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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.