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Finding the Fourth Proportional to 868,976,311.60, 1,304,976,121.80 and 460,829,623.60

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Solution

The fourth proportional to 868,976,311.60, 1,304,976,121.80 and 460,829,623.60 is: 692,046,085.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,976,311.60 : 1,304,976,121.80 = 460,829,623.60 : x
  2. Step 2: Convert to fraction form
    868,976,311.60/1,304,976,121.80 = 460,829,623.60/x
  3. Step 3: Cross multiply
    868,976,311.60x = 1,304,976,121.80 × 460,829,623.60
  4. Step 4: Simplify right side
    868,976,311.60x = 601,371,655,016,081,792
  5. Step 5: Solve for x
    x = 601,371,655,016,081,792/868,976,311.60
  6. Step 6: Final answer
    x = 692,046,085.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.