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Finding the Fourth Proportional to 637,640.70, 956,461.05 and 637,640.70

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Solution

The fourth proportional to 637,640.70, 956,461.05 and 637,640.70 is: 956,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,640.70 : 956,461.05 = 637,640.70 : x
  2. Step 2: Convert to fraction form
    637,640.70/956,461.05 = 637,640.70/x
  3. Step 3: Cross multiply
    637,640.70x = 956,461.05 × 637,640.70
  4. Step 4: Simplify right side
    637,640.70x = 609,878,493,444.74
  5. Step 5: Solve for x
    x = 609,878,493,444.74/637,640.70
  6. Step 6: Final answer
    x = 956,461.05

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Double scale
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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.