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Finding the Fourth Proportional to 983,313, 1,357,160.42 and 553,593.17

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Solution

The fourth proportional to 983,313, 1,357,160.42 and 553,593.17 is: 764,064.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,313 : 1,357,160.42 = 553,593.17 : x
  2. Step 2: Convert to fraction form
    983,313/1,357,160.42 = 553,593.17/x
  3. Step 3: Cross multiply
    983,313x = 1,357,160.42 × 553,593.17
  4. Step 4: Simplify right side
    983,313x = 751,314,729,552.56
  5. Step 5: Solve for x
    x = 751,314,729,552.56/983,313
  6. Step 6: Final answer
    x = 764,064.68

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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.