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Finding the Fourth Proportional to 595,509.40, 821,710.46 and 353,785.76

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Solution

The fourth proportional to 595,509.40, 821,710.46 and 353,785.76 is: 488,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,509.40 : 821,710.46 = 353,785.76 : x
  2. Step 2: Convert to fraction form
    595,509.40/821,710.46 = 353,785.76/x
  3. Step 3: Cross multiply
    595,509.40x = 821,710.46 × 353,785.76
  4. Step 4: Simplify right side
    595,509.40x = 290,709,453,713.57
  5. Step 5: Solve for x
    x = 290,709,453,713.57/595,509.40
  6. Step 6: Final answer
    x = 488,169.38

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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.