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Finding the Fourth Proportional to 523,886.99, 722,970.56 and 317,152.64

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Solution

The fourth proportional to 523,886.99, 722,970.56 and 317,152.64 is: 437,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,886.99 : 722,970.56 = 317,152.64 : x
  2. Step 2: Convert to fraction form
    523,886.99/722,970.56 = 317,152.64/x
  3. Step 3: Cross multiply
    523,886.99x = 722,970.56 × 317,152.64
  4. Step 4: Simplify right side
    523,886.99x = 229,292,021,746.28
  5. Step 5: Solve for x
    x = 229,292,021,746.28/523,886.99
  6. Step 6: Final answer
    x = 437,674.59

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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.