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Finding the Fourth Proportional to 574,458.68, 792,784.38 and 319,804.28

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Solution

The fourth proportional to 574,458.68, 792,784.38 and 319,804.28 is: 441,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,458.68 : 792,784.38 = 319,804.28 : x
  2. Step 2: Convert to fraction form
    574,458.68/792,784.38 = 319,804.28/x
  3. Step 3: Cross multiply
    574,458.68x = 792,784.38 × 319,804.28
  4. Step 4: Simplify right side
    574,458.68x = 253,535,837,841.15
  5. Step 5: Solve for x
    x = 253,535,837,841.15/574,458.68
  6. Step 6: Final answer
    x = 441,347.39

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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.