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Finding the Fourth Proportional to 562,753.10, 776,568.66 and 308,055.08

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Solution

The fourth proportional to 562,753.10, 776,568.66 and 308,055.08 is: 425,099.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,753.10 : 776,568.66 = 308,055.08 : x
  2. Step 2: Convert to fraction form
    562,753.10/776,568.66 = 308,055.08/x
  3. Step 3: Cross multiply
    562,753.10x = 776,568.66 × 308,055.08
  4. Step 4: Simplify right side
    562,753.10x = 239,225,920,681.79
  5. Step 5: Solve for x
    x = 239,225,920,681.79/562,753.10
  6. Step 6: Final answer
    x = 425,099.25

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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.