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Finding the Fourth Proportional to 624,006.30, 936,009.45 and 512,031.90

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Solution

The fourth proportional to 624,006.30, 936,009.45 and 512,031.90 is: 768,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,006.30 : 936,009.45 = 512,031.90 : x
  2. Step 2: Convert to fraction form
    624,006.30/936,009.45 = 512,031.90/x
  3. Step 3: Cross multiply
    624,006.30x = 936,009.45 × 512,031.90
  4. Step 4: Simplify right side
    624,006.30x = 479,266,697,101.46
  5. Step 5: Solve for x
    x = 479,266,697,101.46/624,006.30
  6. Step 6: Final answer
    x = 768,047.85

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Similar ratio
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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.