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Finding the Fourth Proportional to 291,656.70, 437,485.05 and 249,666.30

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Solution

The fourth proportional to 291,656.70, 437,485.05 and 249,666.30 is: 374,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,656.70 : 437,485.05 = 249,666.30 : x
  2. Step 2: Convert to fraction form
    291,656.70/437,485.05 = 249,666.30/x
  3. Step 3: Cross multiply
    291,656.70x = 437,485.05 × 249,666.30
  4. Step 4: Simplify right side
    291,656.70x = 109,225,273,738.82
  5. Step 5: Solve for x
    x = 109,225,273,738.82/291,656.70
  6. Step 6: Final answer
    x = 374,499.45

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Similar ratio
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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.