Home / 638,045.12-957,155.16-283,051.28

Finding the Fourth Proportional to 638,045.12, 957,155.16 and 283,051.28

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Solution

The fourth proportional to 638,045.12, 957,155.16 and 283,051.28 is: 424,615.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,045.12 : 957,155.16 = 283,051.28 : x
  2. Step 2: Convert to fraction form
    638,045.12/957,155.16 = 283,051.28/x
  3. Step 3: Cross multiply
    638,045.12x = 957,155.16 × 283,051.28
  4. Step 4: Simplify right side
    638,045.12x = 270,923,988,410.83
  5. Step 5: Solve for x
    x = 270,923,988,410.83/638,045.12
  6. Step 6: Final answer
    x = 424,615.72

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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.