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Finding the Fourth Proportional to 539,511.85, 744,526.42 and 297,794.51

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Solution

The fourth proportional to 539,511.85, 744,526.42 and 297,794.51 is: 410,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,511.85 : 744,526.42 = 297,794.51 : x
  2. Step 2: Convert to fraction form
    539,511.85/744,526.42 = 297,794.51/x
  3. Step 3: Cross multiply
    539,511.85x = 744,526.42 × 297,794.51
  4. Step 4: Simplify right side
    539,511.85x = 221,715,875,958.84
  5. Step 5: Solve for x
    x = 221,715,875,958.84/539,511.85
  6. Step 6: Final answer
    x = 410,956.45

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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.