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Finding the Fourth Proportional to 633,494.92, 873,522.48 and 403,688.20

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Solution

The fourth proportional to 633,494.92, 873,522.48 and 403,688.20 is: 556,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,494.92 : 873,522.48 = 403,688.20 : x
  2. Step 2: Convert to fraction form
    633,494.92/873,522.48 = 403,688.20/x
  3. Step 3: Cross multiply
    633,494.92x = 873,522.48 × 403,688.20
  4. Step 4: Simplify right side
    633,494.92x = 352,630,717,610.74
  5. Step 5: Solve for x
    x = 352,630,717,610.74/633,494.92
  6. Step 6: Final answer
    x = 556,643.32

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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.