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Finding the Fourth Proportional to 447,437.08, 617,465.22 and 256,461.64

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Solution

The fourth proportional to 447,437.08, 617,465.22 and 256,461.64 is: 353,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,437.08 : 617,465.22 = 256,461.64 : x
  2. Step 2: Convert to fraction form
    447,437.08/617,465.22 = 256,461.64/x
  3. Step 3: Cross multiply
    447,437.08x = 617,465.22 × 256,461.64
  4. Step 4: Simplify right side
    447,437.08x = 158,356,142,964.16
  5. Step 5: Solve for x
    x = 158,356,142,964.16/447,437.08
  6. Step 6: Final answer
    x = 353,918.24

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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.