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Finding the Fourth Proportional to 562,898.10, 776,776.05 and 308,244.90

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Solution

The fourth proportional to 562,898.10, 776,776.05 and 308,244.90 is: 425,365.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,898.10 : 776,776.05 = 308,244.90 : x
  2. Step 2: Convert to fraction form
    562,898.10/776,776.05 = 308,244.90/x
  3. Step 3: Cross multiply
    562,898.10x = 776,776.05 × 308,244.90
  4. Step 4: Simplify right side
    562,898.10x = 239,437,255,854.65
  5. Step 5: Solve for x
    x = 239,437,255,854.65/562,898.10
  6. Step 6: Final answer
    x = 425,365.19

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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.