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Finding the Fourth Proportional to 306,779.46, 423,373.08 and 184,309.30

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Solution

The fourth proportional to 306,779.46, 423,373.08 and 184,309.30 is: 254,357.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,779.46 : 423,373.08 = 184,309.30 : x
  2. Step 2: Convert to fraction form
    306,779.46/423,373.08 = 184,309.30/x
  3. Step 3: Cross multiply
    306,779.46x = 423,373.08 × 184,309.30
  4. Step 4: Simplify right side
    306,779.46x = 78,031,596,013.64
  5. Step 5: Solve for x
    x = 78,031,596,013.64/306,779.46
  6. Step 6: Final answer
    x = 254,357.30

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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.