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Finding the Fourth Proportional to 641,699.19, 963,494.96 and 357,944.13

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Solution

The fourth proportional to 641,699.19, 963,494.96 and 357,944.13 is: 537,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,699.19 : 963,494.96 = 357,944.13 : x
  2. Step 2: Convert to fraction form
    641,699.19/963,494.96 = 357,944.13/x
  3. Step 3: Cross multiply
    641,699.19x = 963,494.96 × 357,944.13
  4. Step 4: Simplify right side
    641,699.19x = 344,877,365,216.59
  5. Step 5: Solve for x
    x = 344,877,365,216.59/641,699.19
  6. Step 6: Final answer
    x = 537,443.98

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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.