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Finding the Fourth Proportional to 556,259.40, 834,194.70 and 289,931.40

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Solution

The fourth proportional to 556,259.40, 834,194.70 and 289,931.40 is: 434,795.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,259.40 : 834,194.70 = 289,931.40 : x
  2. Step 2: Convert to fraction form
    556,259.40/834,194.70 = 289,931.40/x
  3. Step 3: Cross multiply
    556,259.40x = 834,194.70 × 289,931.40
  4. Step 4: Simplify right side
    556,259.40x = 241,859,237,243.58
  5. Step 5: Solve for x
    x = 241,859,237,243.58/556,259.40
  6. Step 6: Final answer
    x = 434,795.78

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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.