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Finding the Fourth Proportional to 384,779.04, 577,231.68 and 118,533.60

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Solution

The fourth proportional to 384,779.04, 577,231.68 and 118,533.60 is: 177,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779.04 : 577,231.68 = 118,533.60 : x
  2. Step 2: Convert to fraction form
    384,779.04/577,231.68 = 118,533.60/x
  3. Step 3: Cross multiply
    384,779.04x = 577,231.68 × 118,533.60
  4. Step 4: Simplify right side
    384,779.04x = 68,421,349,064.45
  5. Step 5: Solve for x
    x = 68,421,349,064.45/384,779.04
  6. Step 6: Final answer
    x = 177,819.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.