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Finding the Fourth Proportional to 450,987.56, 622,328.58 and 249,779.24

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Solution

The fourth proportional to 450,987.56, 622,328.58 and 249,779.24 is: 344,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,987.56 : 622,328.58 = 249,779.24 : x
  2. Step 2: Convert to fraction form
    450,987.56/622,328.58 = 249,779.24/x
  3. Step 3: Cross multiply
    450,987.56x = 622,328.58 × 249,779.24
  4. Step 4: Simplify right side
    450,987.56x = 155,444,759,742.68
  5. Step 5: Solve for x
    x = 155,444,759,742.68/450,987.56
  6. Step 6: Final answer
    x = 344,676.38

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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.