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Finding the Fourth Proportional to 806,674.40, 1,210,400.40 and 569,506.40

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Solution

The fourth proportional to 806,674.40, 1,210,400.40 and 569,506.40 is: 854,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,674.40 : 1,210,400.40 = 569,506.40 : x
  2. Step 2: Convert to fraction form
    806,674.40/1,210,400.40 = 569,506.40/x
  3. Step 3: Cross multiply
    806,674.40x = 1,210,400.40 × 569,506.40
  4. Step 4: Simplify right side
    806,674.40x = 689,330,774,362.56
  5. Step 5: Solve for x
    x = 689,330,774,362.56/806,674.40
  6. Step 6: Final answer
    x = 854,534.09

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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.