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Finding the Fourth Proportional to 586,406.10, 809,327.26 and 371,566.18

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Solution

The fourth proportional to 586,406.10, 809,327.26 and 371,566.18 is: 512,816.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,406.10 : 809,327.26 = 371,566.18 : x
  2. Step 2: Convert to fraction form
    586,406.10/809,327.26 = 371,566.18/x
  3. Step 3: Cross multiply
    586,406.10x = 809,327.26 × 371,566.18
  4. Step 4: Simplify right side
    586,406.10x = 300,718,638,368.07
  5. Step 5: Solve for x
    x = 300,718,638,368.07/586,406.10
  6. Step 6: Final answer
    x = 512,816.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.