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Finding the Fourth Proportional to 521,482.44, 719,646.06 and 283,018.44

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Solution

The fourth proportional to 521,482.44, 719,646.06 and 283,018.44 is: 390,565.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,482.44 : 719,646.06 = 283,018.44 : x
  2. Step 2: Convert to fraction form
    521,482.44/719,646.06 = 283,018.44/x
  3. Step 3: Cross multiply
    521,482.44x = 719,646.06 × 283,018.44
  4. Step 4: Simplify right side
    521,482.44x = 203,673,105,253.35
  5. Step 5: Solve for x
    x = 203,673,105,253.35/521,482.44
  6. Step 6: Final answer
    x = 390,565.61

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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.