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Finding the Fourth Proportional to 384,209.80, 575,277.90 and 384,209.80

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Solution

The fourth proportional to 384,209.80, 575,277.90 and 384,209.80 is: 575,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,209.80 : 575,277.90 = 384,209.80 : x
  2. Step 2: Convert to fraction form
    384,209.80/575,277.90 = 384,209.80/x
  3. Step 3: Cross multiply
    384,209.80x = 575,277.90 × 384,209.80
  4. Step 4: Simplify right side
    384,209.80x = 221,027,406,903.42
  5. Step 5: Solve for x
    x = 221,027,406,903.42/384,209.80
  6. Step 6: Final answer
    x = 575,277.90

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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.