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Finding the Fourth Proportional to 573,618.76, 791,613.06 and 315,506.58

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Solution

The fourth proportional to 573,618.76, 791,613.06 and 315,506.58 is: 435,409.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,618.76 : 791,613.06 = 315,506.58 : x
  2. Step 2: Convert to fraction form
    573,618.76/791,613.06 = 315,506.58/x
  3. Step 3: Cross multiply
    573,618.76x = 791,613.06 × 315,506.58
  4. Step 4: Simplify right side
    573,618.76x = 249,759,129,243.94
  5. Step 5: Solve for x
    x = 249,759,129,243.94/573,618.76
  6. Step 6: Final answer
    x = 435,409.63

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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.