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Finding the Fourth Proportional to 458,717.55, 688,323.77 and 269,547.51

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Solution

The fourth proportional to 458,717.55, 688,323.77 and 269,547.51 is: 404,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,717.55 : 688,323.77 = 269,547.51 : x
  2. Step 2: Convert to fraction form
    458,717.55/688,323.77 = 269,547.51/x
  3. Step 3: Cross multiply
    458,717.55x = 688,323.77 × 269,547.51
  4. Step 4: Simplify right side
    458,717.55x = 185,535,962,037.80
  5. Step 5: Solve for x
    x = 185,535,962,037.80/458,717.55
  6. Step 6: Final answer
    x = 404,466.68

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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.