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Finding the Fourth Proportional to 626,570.51, 865,116.65 and 385,176.74

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Solution

The fourth proportional to 626,570.51, 865,116.65 and 385,176.74 is: 531,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,570.51 : 865,116.65 = 385,176.74 : x
  2. Step 2: Convert to fraction form
    626,570.51/865,116.65 = 385,176.74/x
  3. Step 3: Cross multiply
    626,570.51x = 865,116.65 × 385,176.74
  4. Step 4: Simplify right side
    626,570.51x = 333,222,807,604.08
  5. Step 5: Solve for x
    x = 333,222,807,604.08/626,570.51
  6. Step 6: Final answer
    x = 531,820.13

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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.