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Finding the Fourth Proportional to 424,897.61, 637,740.14 and 214,683.17

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Solution

The fourth proportional to 424,897.61, 637,740.14 and 214,683.17 is: 322,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,897.61 : 637,740.14 = 214,683.17 : x
  2. Step 2: Convert to fraction form
    424,897.61/637,740.14 = 214,683.17/x
  3. Step 3: Cross multiply
    424,897.61x = 637,740.14 × 214,683.17
  4. Step 4: Simplify right side
    424,897.61x = 136,912,070,629.33
  5. Step 5: Solve for x
    x = 136,912,070,629.33/424,897.61
  6. Step 6: Final answer
    x = 322,223.68

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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.