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Finding the Fourth Proportional to 545,434.96, 818,281.68 and 171,458.32

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Solution

The fourth proportional to 545,434.96, 818,281.68 and 171,458.32 is: 257,228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,434.96 : 818,281.68 = 171,458.32 : x
  2. Step 2: Convert to fraction form
    545,434.96/818,281.68 = 171,458.32/x
  3. Step 3: Cross multiply
    545,434.96x = 818,281.68 × 171,458.32
  4. Step 4: Simplify right side
    545,434.96x = 140,301,202,139.58
  5. Step 5: Solve for x
    x = 140,301,202,139.58/545,434.96
  6. Step 6: Final answer
    x = 257,228.11

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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.