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Finding the Fourth Proportional to 586,363.42, 809,217.30 and 328,235.32

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Solution

The fourth proportional to 586,363.42, 809,217.30 and 328,235.32 is: 452,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,363.42 : 809,217.30 = 328,235.32 : x
  2. Step 2: Convert to fraction form
    586,363.42/809,217.30 = 328,235.32/x
  3. Step 3: Cross multiply
    586,363.42x = 809,217.30 × 328,235.32
  4. Step 4: Simplify right side
    586,363.42x = 265,613,699,415.04
  5. Step 5: Solve for x
    x = 265,613,699,415.04/586,363.42
  6. Step 6: Final answer
    x = 452,984.77

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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.