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Finding the Fourth Proportional to 577,947.60, 866,921.40 and 542,955.60

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Solution

The fourth proportional to 577,947.60, 866,921.40 and 542,955.60 is: 814,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,947.60 : 866,921.40 = 542,955.60 : x
  2. Step 2: Convert to fraction form
    577,947.60/866,921.40 = 542,955.60/x
  3. Step 3: Cross multiply
    577,947.60x = 866,921.40 × 542,955.60
  4. Step 4: Simplify right side
    577,947.60x = 470,699,828,889.84
  5. Step 5: Solve for x
    x = 470,699,828,889.84/577,947.60
  6. Step 6: Final answer
    x = 814,433.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.