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Finding the Fourth Proportional to 430,693.47, 594,351 and 239,706.90

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Solution

The fourth proportional to 430,693.47, 594,351 and 239,706.90 is: 330,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,693.47 : 594,351 = 239,706.90 : x
  2. Step 2: Convert to fraction form
    430,693.47/594,351 = 239,706.90/x
  3. Step 3: Cross multiply
    430,693.47x = 594,351 × 239,706.90
  4. Step 4: Simplify right side
    430,693.47x = 142,470,035,721.90
  5. Step 5: Solve for x
    x = 142,470,035,721.90/430,693.47
  6. Step 6: Final answer
    x = 330,792.19

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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.