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Finding the Fourth Proportional to 562,880.35, 776,775.18 and 308,231.52

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Solution

The fourth proportional to 562,880.35, 776,775.18 and 308,231.52 is: 425,359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,880.35 : 776,775.18 = 308,231.52 : x
  2. Step 2: Convert to fraction form
    562,880.35/776,775.18 = 308,231.52/x
  3. Step 3: Cross multiply
    562,880.35x = 776,775.18 × 308,231.52
  4. Step 4: Simplify right side
    562,880.35x = 239,426,594,429.67
  5. Step 5: Solve for x
    x = 239,426,594,429.67/562,880.35
  6. Step 6: Final answer
    x = 425,359.66

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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.