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Finding the Fourth Proportional to 423,281.12, 584,089.32 and 251,169.38

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Solution

The fourth proportional to 423,281.12, 584,089.32 and 251,169.38 is: 346,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,281.12 : 584,089.32 = 251,169.38 : x
  2. Step 2: Convert to fraction form
    423,281.12/584,089.32 = 251,169.38/x
  3. Step 3: Cross multiply
    423,281.12x = 584,089.32 × 251,169.38
  4. Step 4: Simplify right side
    423,281.12x = 146,705,352,369.02
  5. Step 5: Solve for x
    x = 146,705,352,369.02/423,281.12
  6. Step 6: Final answer
    x = 346,590.82

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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.