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Finding the Fourth Proportional to 626,837.38, 865,035.58 and 358,565.38

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Solution

The fourth proportional to 626,837.38, 865,035.58 and 358,565.38 is: 494,820.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,837.38 : 865,035.58 = 358,565.38 : x
  2. Step 2: Convert to fraction form
    626,837.38/865,035.58 = 358,565.38/x
  3. Step 3: Cross multiply
    626,837.38x = 865,035.58 × 358,565.38
  4. Step 4: Simplify right side
    626,837.38x = 310,171,807,131.04
  5. Step 5: Solve for x
    x = 310,171,807,131.04/626,837.38
  6. Step 6: Final answer
    x = 494,820.22

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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.