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Finding the Fourth Proportional to 519,591.99, 716,973.66 and 290,162.02

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Solution

The fourth proportional to 519,591.99, 716,973.66 and 290,162.02 is: 400,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,591.99 : 716,973.66 = 290,162.02 : x
  2. Step 2: Convert to fraction form
    519,591.99/716,973.66 = 290,162.02/x
  3. Step 3: Cross multiply
    519,591.99x = 716,973.66 × 290,162.02
  4. Step 4: Simplify right side
    519,591.99x = 208,038,525,472.39
  5. Step 5: Solve for x
    x = 208,038,525,472.39/519,591.99
  6. Step 6: Final answer
    x = 400,388.25

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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.