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Finding the Fourth Proportional to 562,698.73, 776,598.16 and 320,925.88

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Solution

The fourth proportional to 562,698.73, 776,598.16 and 320,925.88 is: 442,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,698.73 : 776,598.16 = 320,925.88 : x
  2. Step 2: Convert to fraction form
    562,698.73/776,598.16 = 320,925.88/x
  3. Step 3: Cross multiply
    562,698.73x = 776,598.16 × 320,925.88
  4. Step 4: Simplify right side
    562,698.73x = 249,230,444,021.39
  5. Step 5: Solve for x
    x = 249,230,444,021.39/562,698.73
  6. Step 6: Final answer
    x = 442,919.87

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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.