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Finding the Fourth Proportional to 457,590.02, 685,491.61 and 217,362.08

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Solution

The fourth proportional to 457,590.02, 685,491.61 and 217,362.08 is: 325,618.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,590.02 : 685,491.61 = 217,362.08 : x
  2. Step 2: Convert to fraction form
    457,590.02/685,491.61 = 217,362.08/x
  3. Step 3: Cross multiply
    457,590.02x = 685,491.61 × 217,362.08
  4. Step 4: Simplify right side
    457,590.02x = 148,999,881,085.34
  5. Step 5: Solve for x
    x = 148,999,881,085.34/457,590.02
  6. Step 6: Final answer
    x = 325,618.73

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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.