Home / 651,112.20-975,356.10-438,535.80

Finding the Fourth Proportional to 651,112.20, 975,356.10 and 438,535.80

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Solution

The fourth proportional to 651,112.20, 975,356.10 and 438,535.80 is: 656,919.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,112.20 : 975,356.10 = 438,535.80 : x
  2. Step 2: Convert to fraction form
    651,112.20/975,356.10 = 438,535.80/x
  3. Step 3: Cross multiply
    651,112.20x = 975,356.10 × 438,535.80
  4. Step 4: Simplify right side
    651,112.20x = 427,728,567,598.38
  5. Step 5: Solve for x
    x = 427,728,567,598.38/651,112.20
  6. Step 6: Final answer
    x = 656,919.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.