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Finding the Fourth Proportional to 586,628.82, 809,547.77 and 318,356.82

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Solution

The fourth proportional to 586,628.82, 809,547.77 and 318,356.82 is: 439,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,628.82 : 809,547.77 = 318,356.82 : x
  2. Step 2: Convert to fraction form
    586,628.82/809,547.77 = 318,356.82/x
  3. Step 3: Cross multiply
    586,628.82x = 809,547.77 × 318,356.82
  4. Step 4: Simplify right side
    586,628.82x = 257,725,052,103.51
  5. Step 5: Solve for x
    x = 257,725,052,103.51/586,628.82
  6. Step 6: Final answer
    x = 439,332.41

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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.