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Finding the Fourth Proportional to 624,005.80, 936,008.70 and 512,031.40

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Solution

The fourth proportional to 624,005.80, 936,008.70 and 512,031.40 is: 768,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,005.80 : 936,008.70 = 512,031.40 : x
  2. Step 2: Convert to fraction form
    624,005.80/936,008.70 = 512,031.40/x
  3. Step 3: Cross multiply
    624,005.80x = 936,008.70 × 512,031.40
  4. Step 4: Simplify right side
    624,005.80x = 479,265,845,073.18
  5. Step 5: Solve for x
    x = 479,265,845,073.18/624,005.80
  6. Step 6: Final answer
    x = 768,047.10

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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.