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Finding the Fourth Proportional to 534,779.19, 737,925.12 and 319,840.83

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Solution

The fourth proportional to 534,779.19, 737,925.12 and 319,840.83 is: 441,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,779.19 : 737,925.12 = 319,840.83 : x
  2. Step 2: Convert to fraction form
    534,779.19/737,925.12 = 319,840.83/x
  3. Step 3: Cross multiply
    534,779.19x = 737,925.12 × 319,840.83
  4. Step 4: Simplify right side
    534,779.19x = 236,018,582,858.65
  5. Step 5: Solve for x
    x = 236,018,582,858.65/534,779.19
  6. Step 6: Final answer
    x = 441,338.38

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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.