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Finding the Fourth Proportional to 403,985.10, 566,628.90 and 403,985.10

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Solution

The fourth proportional to 403,985.10, 566,628.90 and 403,985.10 is: 566,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,985.10 : 566,628.90 = 403,985.10 : x
  2. Step 2: Convert to fraction form
    403,985.10/566,628.90 = 403,985.10/x
  3. Step 3: Cross multiply
    403,985.10x = 566,628.90 × 403,985.10
  4. Step 4: Simplify right side
    403,985.10x = 228,909,632,829.39
  5. Step 5: Solve for x
    x = 228,909,632,829.39/403,985.10
  6. Step 6: Final answer
    x = 566,628.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.