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Finding the Fourth Proportional to 634,078.24, 874,884.24 and 430,156.96

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Solution

The fourth proportional to 634,078.24, 874,884.24 and 430,156.96 is: 593,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,078.24 : 874,884.24 = 430,156.96 : x
  2. Step 2: Convert to fraction form
    634,078.24/874,884.24 = 430,156.96/x
  3. Step 3: Cross multiply
    634,078.24x = 874,884.24 × 430,156.96
  4. Step 4: Simplify right side
    634,078.24x = 376,337,545,030.31
  5. Step 5: Solve for x
    x = 376,337,545,030.31/634,078.24
  6. Step 6: Final answer
    x = 593,519.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.