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Finding the Fourth Proportional to 539,576.03, 744,615.05 and 297,858.76

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Solution

The fourth proportional to 539,576.03, 744,615.05 and 297,858.76 is: 411,045.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,576.03 : 744,615.05 = 297,858.76 : x
  2. Step 2: Convert to fraction form
    539,576.03/744,615.05 = 297,858.76/x
  3. Step 3: Cross multiply
    539,576.03x = 744,615.05 × 297,858.76
  4. Step 4: Simplify right side
    539,576.03x = 221,790,116,307.97
  5. Step 5: Solve for x
    x = 221,790,116,307.97/539,576.03
  6. Step 6: Final answer
    x = 411,045.16

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Double scale
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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.