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Finding the Fourth Proportional to 539,627.13, 744,748.43 and 448,822.89

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Solution

The fourth proportional to 539,627.13, 744,748.43 and 448,822.89 is: 619,427.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,627.13 : 744,748.43 = 448,822.89 : x
  2. Step 2: Convert to fraction form
    539,627.13/744,748.43 = 448,822.89/x
  3. Step 3: Cross multiply
    539,627.13x = 744,748.43 × 448,822.89
  4. Step 4: Simplify right side
    539,627.13x = 334,260,140,431.45
  5. Step 5: Solve for x
    x = 334,260,140,431.45/539,627.13
  6. Step 6: Final answer
    x = 619,427.98

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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.