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Finding the Fourth Proportional to 356,779.60, 535,169.40 and 146,568.40

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Solution

The fourth proportional to 356,779.60, 535,169.40 and 146,568.40 is: 219,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,779.60 : 535,169.40 = 146,568.40 : x
  2. Step 2: Convert to fraction form
    356,779.60/535,169.40 = 146,568.40/x
  3. Step 3: Cross multiply
    356,779.60x = 535,169.40 × 146,568.40
  4. Step 4: Simplify right side
    356,779.60x = 78,438,922,686.96
  5. Step 5: Solve for x
    x = 78,438,922,686.96/356,779.60
  6. Step 6: Final answer
    x = 219,852.60

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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.