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Finding the Fourth Proportional to 616,615.70, 924,923.55 and 447,341.90

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Solution

The fourth proportional to 616,615.70, 924,923.55 and 447,341.90 is: 671,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,615.70 : 924,923.55 = 447,341.90 : x
  2. Step 2: Convert to fraction form
    616,615.70/924,923.55 = 447,341.90/x
  3. Step 3: Cross multiply
    616,615.70x = 924,923.55 × 447,341.90
  4. Step 4: Simplify right side
    616,615.70x = 413,757,058,211.75
  5. Step 5: Solve for x
    x = 413,757,058,211.75/616,615.70
  6. Step 6: Final answer
    x = 671,012.85

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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.