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Finding the Fourth Proportional to 890,352,016.40, 1,335,528,024.60 and 791,716,566.80

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Solution

The fourth proportional to 890,352,016.40, 1,335,528,024.60 and 791,716,566.80 is: 1,187,574,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,352,016.40 : 1,335,528,024.60 = 791,716,566.80 : x
  2. Step 2: Convert to fraction form
    890,352,016.40/1,335,528,024.60 = 791,716,566.80/x
  3. Step 3: Cross multiply
    890,352,016.40x = 1,335,528,024.60 × 791,716,566.80
  4. Step 4: Simplify right side
    890,352,016.40x = 1,057,359,662,501,497,856
  5. Step 5: Solve for x
    x = 1,057,359,662,501,497,856/890,352,016.40
  6. Step 6: Final answer
    x = 1,187,574,850.20

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Double scale
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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.