Home / 430,167.04-645,426.73-190,153.91

Finding the Fourth Proportional to 430,167.04, 645,426.73 and 190,153.91

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Solution

The fourth proportional to 430,167.04, 645,426.73 and 190,153.91 is: 285,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,167.04 : 645,426.73 = 190,153.91 : x
  2. Step 2: Convert to fraction form
    430,167.04/645,426.73 = 190,153.91/x
  3. Step 3: Cross multiply
    430,167.04x = 645,426.73 × 190,153.91
  4. Step 4: Simplify right side
    430,167.04x = 122,730,418,179.27
  5. Step 5: Solve for x
    x = 122,730,418,179.27/430,167.04
  6. Step 6: Final answer
    x = 285,308.75

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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.