Home / 983,557.64-1,357,438.86-553,921.76

Finding the Fourth Proportional to 983,557.64, 1,357,438.86 and 553,921.76

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Solution

The fourth proportional to 983,557.64, 1,357,438.86 and 553,921.76 is: 764,484.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,557.64 : 1,357,438.86 = 553,921.76 : x
  2. Step 2: Convert to fraction form
    983,557.64/1,357,438.86 = 553,921.76/x
  3. Step 3: Cross multiply
    983,557.64x = 1,357,438.86 × 553,921.76
  4. Step 4: Simplify right side
    983,557.64x = 751,914,922,423.59
  5. Step 5: Solve for x
    x = 751,914,922,423.59/983,557.64
  6. Step 6: Final answer
    x = 764,484.86

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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.