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Finding the Fourth Proportional to 283,666.30, 425,499.45 and 260,046.70

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Solution

The fourth proportional to 283,666.30, 425,499.45 and 260,046.70 is: 390,070.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,666.30 : 425,499.45 = 260,046.70 : x
  2. Step 2: Convert to fraction form
    283,666.30/425,499.45 = 260,046.70/x
  3. Step 3: Cross multiply
    283,666.30x = 425,499.45 × 260,046.70
  4. Step 4: Simplify right side
    283,666.30x = 110,649,727,824.32
  5. Step 5: Solve for x
    x = 110,649,727,824.32/283,666.30
  6. Step 6: Final answer
    x = 390,070.05

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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.