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Finding the Fourth Proportional to 539,038.72, 744,118.14 and 384,090.04

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Solution

The fourth proportional to 539,038.72, 744,118.14 and 384,090.04 is: 530,218.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,038.72 : 744,118.14 = 384,090.04 : x
  2. Step 2: Convert to fraction form
    539,038.72/744,118.14 = 384,090.04/x
  3. Step 3: Cross multiply
    539,038.72x = 744,118.14 × 384,090.04
  4. Step 4: Simplify right side
    539,038.72x = 285,808,366,157.33
  5. Step 5: Solve for x
    x = 285,808,366,157.33/539,038.72
  6. Step 6: Final answer
    x = 530,218.62

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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.