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Finding the Fourth Proportional to 653,547.56, 980,705.00 and 274,439.07

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Solution

The fourth proportional to 653,547.56, 980,705.00 and 274,439.07 is: 411,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,547.56 : 980,705.00 = 274,439.07 : x
  2. Step 2: Convert to fraction form
    653,547.56/980,705.00 = 274,439.07/x
  3. Step 3: Cross multiply
    653,547.56x = 980,705.00 × 274,439.07
  4. Step 4: Simplify right side
    653,547.56x = 269,143,768,830.45
  5. Step 5: Solve for x
    x = 269,143,768,830.45/653,547.56
  6. Step 6: Final answer
    x = 411,819.72

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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.