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Finding the Fourth Proportional to 423,386.18, 584,007.15 and 251,182.22

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Solution

The fourth proportional to 423,386.18, 584,007.15 and 251,182.22 is: 346,473.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,386.18 : 584,007.15 = 251,182.22 : x
  2. Step 2: Convert to fraction form
    423,386.18/584,007.15 = 251,182.22/x
  3. Step 3: Cross multiply
    423,386.18x = 584,007.15 × 251,182.22
  4. Step 4: Simplify right side
    423,386.18x = 146,692,214,520.85
  5. Step 5: Solve for x
    x = 146,692,214,520.85/423,386.18
  6. Step 6: Final answer
    x = 346,473.79

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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.