Home / 838,465.86-1,257,985.80-358,495.90

Finding the Fourth Proportional to 838,465.86, 1,257,985.80 and 358,495.90

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Solution

The fourth proportional to 838,465.86, 1,257,985.80 and 358,495.90 is: 537,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,465.86 : 1,257,985.80 = 358,495.90 : x
  2. Step 2: Convert to fraction form
    838,465.86/1,257,985.80 = 358,495.90/x
  3. Step 3: Cross multiply
    838,465.86x = 1,257,985.80 × 358,495.90
  4. Step 4: Simplify right side
    838,465.86x = 450,982,751,558.22
  5. Step 5: Solve for x
    x = 450,982,751,558.22/838,465.86
  6. Step 6: Final answer
    x = 537,866.56

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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.