Home / 860,409.59-1,187,513.86-498,033.26

Finding the Fourth Proportional to 860,409.59, 1,187,513.86 and 498,033.26

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Solution

The fourth proportional to 860,409.59, 1,187,513.86 and 498,033.26 is: 687,371.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,409.59 : 1,187,513.86 = 498,033.26 : x
  2. Step 2: Convert to fraction form
    860,409.59/1,187,513.86 = 498,033.26/x
  3. Step 3: Cross multiply
    860,409.59x = 1,187,513.86 × 498,033.26
  4. Step 4: Simplify right side
    860,409.59x = 591,421,391,808.33
  5. Step 5: Solve for x
    x = 591,421,391,808.33/860,409.59
  6. Step 6: Final answer
    x = 687,371.92

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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.