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Finding the Fourth Proportional to 719,889.94, 993,430.24 and 413,959.03

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Solution

The fourth proportional to 719,889.94, 993,430.24 and 413,959.03 is: 571,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,889.94 : 993,430.24 = 413,959.03 : x
  2. Step 2: Convert to fraction form
    719,889.94/993,430.24 = 413,959.03/x
  3. Step 3: Cross multiply
    719,889.94x = 993,430.24 × 413,959.03
  4. Step 4: Simplify right side
    719,889.94x = 411,239,415,004.59
  5. Step 5: Solve for x
    x = 411,239,415,004.59/719,889.94
  6. Step 6: Final answer
    x = 571,253.18

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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.