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Finding the Fourth Proportional to 539,666.85, 744,725.43 and 297,945.03

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Solution

The fourth proportional to 539,666.85, 744,725.43 and 297,945.03 is: 411,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,666.85 : 744,725.43 = 297,945.03 : x
  2. Step 2: Convert to fraction form
    539,666.85/744,725.43 = 297,945.03/x
  3. Step 3: Cross multiply
    539,666.85x = 744,725.43 × 297,945.03
  4. Step 4: Simplify right side
    539,666.85x = 221,887,240,583.11
  5. Step 5: Solve for x
    x = 221,887,240,583.11/539,666.85
  6. Step 6: Final answer
    x = 411,155.96

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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.