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Finding the Fourth Proportional to 566,798.55, 782,176.82 and 312,144.27

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Solution

The fourth proportional to 566,798.55, 782,176.82 and 312,144.27 is: 430,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,798.55 : 782,176.82 = 312,144.27 : x
  2. Step 2: Convert to fraction form
    566,798.55/782,176.82 = 312,144.27/x
  3. Step 3: Cross multiply
    566,798.55x = 782,176.82 × 312,144.27
  4. Step 4: Simplify right side
    566,798.55x = 244,152,010,929.10
  5. Step 5: Solve for x
    x = 244,152,010,929.10/566,798.55
  6. Step 6: Final answer
    x = 430,756.24

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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.