Home / 983,554.80-1,357,378.20-553,881.84

Finding the Fourth Proportional to 983,554.80, 1,357,378.20 and 553,881.84

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Solution

The fourth proportional to 983,554.80, 1,357,378.20 and 553,881.84 is: 764,397.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,554.80 : 1,357,378.20 = 553,881.84 : x
  2. Step 2: Convert to fraction form
    983,554.80/1,357,378.20 = 553,881.84/x
  3. Step 3: Cross multiply
    983,554.80x = 1,357,378.20 × 553,881.84
  4. Step 4: Simplify right side
    983,554.80x = 751,827,134,991.89
  5. Step 5: Solve for x
    x = 751,827,134,991.89/983,554.80
  6. Step 6: Final answer
    x = 764,397.81

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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.