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Finding the Fourth Proportional to 583,309.69, 804,967.67 and 315,037.69

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Solution

The fourth proportional to 583,309.69, 804,967.67 and 315,037.69 is: 434,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,309.69 : 804,967.67 = 315,037.69 : x
  2. Step 2: Convert to fraction form
    583,309.69/804,967.67 = 315,037.69/x
  3. Step 3: Cross multiply
    583,309.69x = 804,967.67 × 315,037.69
  4. Step 4: Simplify right side
    583,309.69x = 253,595,154,056.66
  5. Step 5: Solve for x
    x = 253,595,154,056.66/583,309.69
  6. Step 6: Final answer
    x = 434,752.17

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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.