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Finding the Fourth Proportional to 575,021.87, 793,535.61 and 316,908.13

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Solution

The fourth proportional to 575,021.87, 793,535.61 and 316,908.13 is: 437,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,021.87 : 793,535.61 = 316,908.13 : x
  2. Step 2: Convert to fraction form
    575,021.87/793,535.61 = 316,908.13/x
  3. Step 3: Cross multiply
    575,021.87x = 793,535.61 × 316,908.13
  4. Step 4: Simplify right side
    575,021.87x = 251,477,884,269.67
  5. Step 5: Solve for x
    x = 251,477,884,269.67/575,021.87
  6. Step 6: Final answer
    x = 437,336.21

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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.