Home / 634,139.12-875,111.77-347,653.06

Finding the Fourth Proportional to 634,139.12, 875,111.77 and 347,653.06

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Solution

The fourth proportional to 634,139.12, 875,111.77 and 347,653.06 is: 479,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,139.12 : 875,111.77 = 347,653.06 : x
  2. Step 2: Convert to fraction form
    634,139.12/875,111.77 = 347,653.06/x
  3. Step 3: Cross multiply
    634,139.12x = 875,111.77 × 347,653.06
  4. Step 4: Simplify right side
    634,139.12x = 304,235,284,682.52
  5. Step 5: Solve for x
    x = 304,235,284,682.52/634,139.12
  6. Step 6: Final answer
    x = 479,761.10

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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.