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Finding the Fourth Proportional to 562,828.56, 776,695.70 and 308,179.74

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Solution

The fourth proportional to 562,828.56, 776,695.70 and 308,179.74 is: 425,283.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,828.56 : 776,695.70 = 308,179.74 : x
  2. Step 2: Convert to fraction form
    562,828.56/776,695.70 = 308,179.74/x
  3. Step 3: Cross multiply
    562,828.56x = 776,695.70 × 308,179.74
  4. Step 4: Simplify right side
    562,828.56x = 239,361,878,885.12
  5. Step 5: Solve for x
    x = 239,361,878,885.12/562,828.56
  6. Step 6: Final answer
    x = 425,283.82

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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.