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Finding the Fourth Proportional to 514,590.64, 710,481.66 and 321,292.64

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Solution

The fourth proportional to 514,590.64, 710,481.66 and 321,292.64 is: 443,600.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,590.64 : 710,481.66 = 321,292.64 : x
  2. Step 2: Convert to fraction form
    514,590.64/710,481.66 = 321,292.64/x
  3. Step 3: Cross multiply
    514,590.64x = 710,481.66 × 321,292.64
  4. Step 4: Simplify right side
    514,590.64x = 228,272,528,212.98
  5. Step 5: Solve for x
    x = 228,272,528,212.98/514,590.64
  6. Step 6: Final answer
    x = 443,600.23

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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.