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Finding the Fourth Proportional to 567,537.50, 783,207.06 and 312,897.80

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Solution

The fourth proportional to 567,537.50, 783,207.06 and 312,897.80 is: 431,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,537.50 : 783,207.06 = 312,897.80 : x
  2. Step 2: Convert to fraction form
    567,537.50/783,207.06 = 312,897.80/x
  3. Step 3: Cross multiply
    567,537.50x = 783,207.06 × 312,897.80
  4. Step 4: Simplify right side
    567,537.50x = 245,063,766,018.47
  5. Step 5: Solve for x
    x = 245,063,766,018.47/567,537.50
  6. Step 6: Final answer
    x = 431,801.89

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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.