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Finding the Fourth Proportional to 613,756.55, 846,690.68 and 476,853.65

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Solution

The fourth proportional to 613,756.55, 846,690.68 and 476,853.65 is: 657,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,756.55 : 846,690.68 = 476,853.65 : x
  2. Step 2: Convert to fraction form
    613,756.55/846,690.68 = 476,853.65/x
  3. Step 3: Cross multiply
    613,756.55x = 846,690.68 × 476,853.65
  4. Step 4: Simplify right side
    613,756.55x = 403,747,534,561.26
  5. Step 5: Solve for x
    x = 403,747,534,561.26/613,756.55
  6. Step 6: Final answer
    x = 657,830.10

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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.