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Finding the Fourth Proportional to 555,503.67, 766,657.44 and 313,801.83

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Solution

The fourth proportional to 555,503.67, 766,657.44 and 313,801.83 is: 433,081.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,503.67 : 766,657.44 = 313,801.83 : x
  2. Step 2: Convert to fraction form
    555,503.67/766,657.44 = 313,801.83/x
  3. Step 3: Cross multiply
    555,503.67x = 766,657.44 × 313,801.83
  4. Step 4: Simplify right side
    555,503.67x = 240,578,507,655.12
  5. Step 5: Solve for x
    x = 240,578,507,655.12/555,503.67
  6. Step 6: Final answer
    x = 433,081.76

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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.