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Finding the Fourth Proportional to 567,486.48, 783,111.33 and 309,358.14

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Solution

The fourth proportional to 567,486.48, 783,111.33 and 309,358.14 is: 426,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,486.48 : 783,111.33 = 309,358.14 : x
  2. Step 2: Convert to fraction form
    567,486.48/783,111.33 = 309,358.14/x
  3. Step 3: Cross multiply
    567,486.48x = 783,111.33 × 309,358.14
  4. Step 4: Simplify right side
    567,486.48x = 242,261,864,461.73
  5. Step 5: Solve for x
    x = 242,261,864,461.73/567,486.48
  6. Step 6: Final answer
    x = 426,903.32

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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.