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Finding the Fourth Proportional to 562,780.71, 776,631.49 and 304,651.83

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Solution

The fourth proportional to 562,780.71, 776,631.49 and 304,651.83 is: 420,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,780.71 : 776,631.49 = 304,651.83 : x
  2. Step 2: Convert to fraction form
    562,780.71/776,631.49 = 304,651.83/x
  3. Step 3: Cross multiply
    562,780.71x = 776,631.49 × 304,651.83
  4. Step 4: Simplify right side
    562,780.71x = 236,602,208,528.53
  5. Step 5: Solve for x
    x = 236,602,208,528.53/562,780.71
  6. Step 6: Final answer
    x = 420,416.34

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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.