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Finding the Fourth Proportional to 695,319.58, 958,809.79 and 514,408.20

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Solution

The fourth proportional to 695,319.58, 958,809.79 and 514,408.20 is: 709,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,319.58 : 958,809.79 = 514,408.20 : x
  2. Step 2: Convert to fraction form
    695,319.58/958,809.79 = 514,408.20/x
  3. Step 3: Cross multiply
    695,319.58x = 958,809.79 × 514,408.20
  4. Step 4: Simplify right side
    695,319.58x = 493,219,618,216.28
  5. Step 5: Solve for x
    x = 493,219,618,216.28/695,319.58
  6. Step 6: Final answer
    x = 709,342.34

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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.