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Finding the Fourth Proportional to 530,606.36, 732,212.62 and 288,888.40

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Solution

The fourth proportional to 530,606.36, 732,212.62 and 288,888.40 is: 398,652.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,606.36 : 732,212.62 = 288,888.40 : x
  2. Step 2: Convert to fraction form
    530,606.36/732,212.62 = 288,888.40/x
  3. Step 3: Cross multiply
    530,606.36x = 732,212.62 × 288,888.40
  4. Step 4: Simplify right side
    530,606.36x = 211,527,728,590.55
  5. Step 5: Solve for x
    x = 211,527,728,590.55/530,606.36
  6. Step 6: Final answer
    x = 398,652.84

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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.