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Finding the Fourth Proportional to 562,763.16, 776,582.40 and 308,065.08

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Solution

The fourth proportional to 562,763.16, 776,582.40 and 308,065.08 is: 425,112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,763.16 : 776,582.40 = 308,065.08 : x
  2. Step 2: Convert to fraction form
    562,763.16/776,582.40 = 308,065.08/x
  3. Step 3: Cross multiply
    562,763.16x = 776,582.40 × 308,065.08
  4. Step 4: Simplify right side
    562,763.16x = 239,237,919,182.59
  5. Step 5: Solve for x
    x = 239,237,919,182.59/562,763.16
  6. Step 6: Final answer
    x = 425,112.97

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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.