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Finding the Fourth Proportional to 453,044.70, 679,567.05 and 407,943.90

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Solution

The fourth proportional to 453,044.70, 679,567.05 and 407,943.90 is: 611,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,044.70 : 679,567.05 = 407,943.90 : x
  2. Step 2: Convert to fraction form
    453,044.70/679,567.05 = 407,943.90/x
  3. Step 3: Cross multiply
    453,044.70x = 679,567.05 × 407,943.90
  4. Step 4: Simplify right side
    453,044.70x = 277,225,232,688.50
  5. Step 5: Solve for x
    x = 277,225,232,688.50/453,044.70
  6. Step 6: Final answer
    x = 611,915.85

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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.