Home / 818,417.79-1,129,473.32-496,141.47

Finding the Fourth Proportional to 818,417.79, 1,129,473.32 and 496,141.47

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Solution

The fourth proportional to 818,417.79, 1,129,473.32 and 496,141.47 is: 684,709.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,417.79 : 1,129,473.32 = 496,141.47 : x
  2. Step 2: Convert to fraction form
    818,417.79/1,129,473.32 = 496,141.47/x
  3. Step 3: Cross multiply
    818,417.79x = 1,129,473.32 × 496,141.47
  4. Step 4: Simplify right side
    818,417.79x = 560,378,550,829.87
  5. Step 5: Solve for x
    x = 560,378,550,829.87/818,417.79
  6. Step 6: Final answer
    x = 684,709.64

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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.