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Finding the Fourth Proportional to 705,799.71, 973,986.50 and 395,681.75

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Solution

The fourth proportional to 705,799.71, 973,986.50 and 395,681.75 is: 546,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,799.71 : 973,986.50 = 395,681.75 : x
  2. Step 2: Convert to fraction form
    705,799.71/973,986.50 = 395,681.75/x
  3. Step 3: Cross multiply
    705,799.71x = 973,986.50 × 395,681.75
  4. Step 4: Simplify right side
    705,799.71x = 385,388,680,085.57
  5. Step 5: Solve for x
    x = 385,388,680,085.57/705,799.71
  6. Step 6: Final answer
    x = 546,031.22

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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.