Home / 644,860.02-889,836.12-372,886.86

Finding the Fourth Proportional to 644,860.02, 889,836.12 and 372,886.86

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Solution

The fourth proportional to 644,860.02, 889,836.12 and 372,886.86 is: 514,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,860.02 : 889,836.12 = 372,886.86 : x
  2. Step 2: Convert to fraction form
    644,860.02/889,836.12 = 372,886.86/x
  3. Step 3: Cross multiply
    644,860.02x = 889,836.12 × 372,886.86
  4. Step 4: Simplify right side
    644,860.02x = 331,808,196,701.38
  5. Step 5: Solve for x
    x = 331,808,196,701.38/644,860.02
  6. Step 6: Final answer
    x = 514,542.98

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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.