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Finding the Fourth Proportional to 637,807.80, 956,711.70 and 217,097.40

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Solution

The fourth proportional to 637,807.80, 956,711.70 and 217,097.40 is: 325,646.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,807.80 : 956,711.70 = 217,097.40 : x
  2. Step 2: Convert to fraction form
    637,807.80/956,711.70 = 217,097.40/x
  3. Step 3: Cross multiply
    637,807.80x = 956,711.70 × 217,097.40
  4. Step 4: Simplify right side
    637,807.80x = 207,699,622,619.58
  5. Step 5: Solve for x
    x = 207,699,622,619.58/637,807.80
  6. Step 6: Final answer
    x = 325,646.10

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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.