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Finding the Fourth Proportional to 539,549.74, 744,401.81 and 384,525.46

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Solution

The fourth proportional to 539,549.74, 744,401.81 and 384,525.46 is: 530,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,549.74 : 744,401.81 = 384,525.46 : x
  2. Step 2: Convert to fraction form
    539,549.74/744,401.81 = 384,525.46/x
  3. Step 3: Cross multiply
    539,549.74x = 744,401.81 × 384,525.46
  4. Step 4: Simplify right side
    539,549.74x = 286,241,447,515.39
  5. Step 5: Solve for x
    x = 286,241,447,515.39/539,549.74
  6. Step 6: Final answer
    x = 530,519.11

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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.