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Finding the Fourth Proportional to 517,779.12, 776,757.24 and 237,320.40

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Solution

The fourth proportional to 517,779.12, 776,757.24 and 237,320.40 is: 356,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,779.12 : 776,757.24 = 237,320.40 : x
  2. Step 2: Convert to fraction form
    517,779.12/776,757.24 = 237,320.40/x
  3. Step 3: Cross multiply
    517,779.12x = 776,757.24 × 237,320.40
  4. Step 4: Simplify right side
    517,779.12x = 184,340,338,899.70
  5. Step 5: Solve for x
    x = 184,340,338,899.70/517,779.12
  6. Step 6: Final answer
    x = 356,021.19

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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.