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Finding the Fourth Proportional to 707,122.53, 975,850.81 and 401,211.65

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Solution

The fourth proportional to 707,122.53, 975,850.81 and 401,211.65 is: 553,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,122.53 : 975,850.81 = 401,211.65 : x
  2. Step 2: Convert to fraction form
    707,122.53/975,850.81 = 401,211.65/x
  3. Step 3: Cross multiply
    707,122.53x = 975,850.81 × 401,211.65
  4. Step 4: Simplify right side
    707,122.53x = 391,522,715,070.53
  5. Step 5: Solve for x
    x = 391,522,715,070.53/707,122.53
  6. Step 6: Final answer
    x = 553,684.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.