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Finding the Fourth Proportional to 567,710.40, 783,404.64 and 313,063.68

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Solution

The fourth proportional to 567,710.40, 783,404.64 and 313,063.68 is: 432,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,710.40 : 783,404.64 = 313,063.68 : x
  2. Step 2: Convert to fraction form
    567,710.40/783,404.64 = 313,063.68/x
  3. Step 3: Cross multiply
    567,710.40x = 783,404.64 × 313,063.68
  4. Step 4: Simplify right side
    567,710.40x = 245,255,539,527.48
  5. Step 5: Solve for x
    x = 245,255,539,527.48/567,710.40
  6. Step 6: Final answer
    x = 432,008.19

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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.