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Finding the Fourth Proportional to 964,253.54, 1,330,659.42 and 556,350.50

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Solution

The fourth proportional to 964,253.54, 1,330,659.42 and 556,350.50 is: 767,757.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,253.54 : 1,330,659.42 = 556,350.50 : x
  2. Step 2: Convert to fraction form
    964,253.54/1,330,659.42 = 556,350.50/x
  3. Step 3: Cross multiply
    964,253.54x = 1,330,659.42 × 556,350.50
  4. Step 4: Simplify right side
    964,253.54x = 740,313,033,646.71
  5. Step 5: Solve for x
    x = 740,313,033,646.71/964,253.54
  6. Step 6: Final answer
    x = 767,757.65

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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.