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Finding the Fourth Proportional to 403,313.70, 604,970.55 and 383,630.70

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Solution

The fourth proportional to 403,313.70, 604,970.55 and 383,630.70 is: 575,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,313.70 : 604,970.55 = 383,630.70 : x
  2. Step 2: Convert to fraction form
    403,313.70/604,970.55 = 383,630.70/x
  3. Step 3: Cross multiply
    403,313.70x = 604,970.55 × 383,630.70
  4. Step 4: Simplify right side
    403,313.70x = 232,085,275,575.89
  5. Step 5: Solve for x
    x = 232,085,275,575.89/403,313.70
  6. Step 6: Final answer
    x = 575,446.05

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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.