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Finding the Fourth Proportional to 355,359.91, 535,437.42 and 293,564.40

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Solution

The fourth proportional to 355,359.91, 535,437.42 and 293,564.40 is: 442,327.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,359.91 : 535,437.42 = 293,564.40 : x
  2. Step 2: Convert to fraction form
    355,359.91/535,437.42 = 293,564.40/x
  3. Step 3: Cross multiply
    355,359.91x = 535,437.42 × 293,564.40
  4. Step 4: Simplify right side
    355,359.91x = 157,185,364,939.85
  5. Step 5: Solve for x
    x = 157,185,364,939.85/355,359.91
  6. Step 6: Final answer
    x = 442,327.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.