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Finding the Fourth Proportional to 898,641,354.40, 1,347,962,031.60 and 735,382,679.20

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Solution

The fourth proportional to 898,641,354.40, 1,347,962,031.60 and 735,382,679.20 is: 1,103,074,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,641,354.40 : 1,347,962,031.60 = 735,382,679.20 : x
  2. Step 2: Convert to fraction form
    898,641,354.40/1,347,962,031.60 = 735,382,679.20/x
  3. Step 3: Cross multiply
    898,641,354.40x = 1,347,962,031.60 × 735,382,679.20
  4. Step 4: Simplify right side
    898,641,354.40x = 991,267,930,257,883,008
  5. Step 5: Solve for x
    x = 991,267,930,257,883,008/898,641,354.40
  6. Step 6: Final answer
    x = 1,103,074,018.80

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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.