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Finding the Fourth Proportional to 562,752.10, 776,567.28 and 308,054.08

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Solution

The fourth proportional to 562,752.10, 776,567.28 and 308,054.08 is: 425,097.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,752.10 : 776,567.28 = 308,054.08 : x
  2. Step 2: Convert to fraction form
    562,752.10/776,567.28 = 308,054.08/x
  3. Step 3: Cross multiply
    562,752.10x = 776,567.28 × 308,054.08
  4. Step 4: Simplify right side
    562,752.10x = 239,224,718,998.50
  5. Step 5: Solve for x
    x = 239,224,718,998.50/562,752.10
  6. Step 6: Final answer
    x = 425,097.87

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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.