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Finding the Fourth Proportional to 615,854.22, 922,542.54 and 307,175.58

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Solution

The fourth proportional to 615,854.22, 922,542.54 and 307,175.58 is: 460,145.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,854.22 : 922,542.54 = 307,175.58 : x
  2. Step 2: Convert to fraction form
    615,854.22/922,542.54 = 307,175.58/x
  3. Step 3: Cross multiply
    615,854.22x = 922,542.54 × 307,175.58
  4. Step 4: Simplify right side
    615,854.22x = 283,382,539,799.17
  5. Step 5: Solve for x
    x = 283,382,539,799.17/615,854.22
  6. Step 6: Final answer
    x = 460,145.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.