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Finding the Fourth Proportional to 319,406.16, 440,779.65 and 183,448.89

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Solution

The fourth proportional to 319,406.16, 440,779.65 and 183,448.89 is: 253,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,406.16 : 440,779.65 = 183,448.89 : x
  2. Step 2: Convert to fraction form
    319,406.16/440,779.65 = 183,448.89/x
  3. Step 3: Cross multiply
    319,406.16x = 440,779.65 × 183,448.89
  4. Step 4: Simplify right side
    319,406.16x = 80,860,537,527.09
  5. Step 5: Solve for x
    x = 80,860,537,527.09/319,406.16
  6. Step 6: Final answer
    x = 253,158.98

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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.