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Finding the Fourth Proportional to 562,734.68, 776,573.85 and 308,085.86

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Solution

The fourth proportional to 562,734.68, 776,573.85 and 308,085.86 is: 425,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,734.68 : 776,573.85 = 308,085.86 : x
  2. Step 2: Convert to fraction form
    562,734.68/776,573.85 = 308,085.86/x
  3. Step 3: Cross multiply
    562,734.68x = 776,573.85 × 308,085.86
  4. Step 4: Simplify right side
    562,734.68x = 239,251,418,547.89
  5. Step 5: Solve for x
    x = 239,251,418,547.89/562,734.68
  6. Step 6: Final answer
    x = 425,158.48

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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.