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Finding the Fourth Proportional to 562,534.92, 776,310.96 and 307,886.76

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Solution

The fourth proportional to 562,534.92, 776,310.96 and 307,886.76 is: 424,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,534.92 : 776,310.96 = 307,886.76 : x
  2. Step 2: Convert to fraction form
    562,534.92/776,310.96 = 307,886.76/x
  3. Step 3: Cross multiply
    562,534.92x = 776,310.96 × 307,886.76
  4. Step 4: Simplify right side
    562,534.92x = 239,015,866,226.89
  5. Step 5: Solve for x
    x = 239,015,866,226.89/562,534.92
  6. Step 6: Final answer
    x = 424,890.72

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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.