Home / 776,866.02-1,072,177.30-437,400.42

Finding the Fourth Proportional to 776,866.02, 1,072,177.30 and 437,400.42

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Solution

The fourth proportional to 776,866.02, 1,072,177.30 and 437,400.42 is: 603,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,866.02 : 1,072,177.30 = 437,400.42 : x
  2. Step 2: Convert to fraction form
    776,866.02/1,072,177.30 = 437,400.42/x
  3. Step 3: Cross multiply
    776,866.02x = 1,072,177.30 × 437,400.42
  4. Step 4: Simplify right side
    776,866.02x = 468,970,801,334.47
  5. Step 5: Solve for x
    x = 468,970,801,334.47/776,866.02
  6. Step 6: Final answer
    x = 603,670.12

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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.