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Finding the Fourth Proportional to 497,480.84, 686,525.83 and 282,632.69

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Solution

The fourth proportional to 497,480.84, 686,525.83 and 282,632.69 is: 390,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,480.84 : 686,525.83 = 282,632.69 : x
  2. Step 2: Convert to fraction form
    497,480.84/686,525.83 = 282,632.69/x
  3. Step 3: Cross multiply
    497,480.84x = 686,525.83 × 282,632.69
  4. Step 4: Simplify right side
    497,480.84x = 194,034,643,097.12
  5. Step 5: Solve for x
    x = 194,034,643,097.12/497,480.84
  6. Step 6: Final answer
    x = 390,034.41

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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.