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Finding the Fourth Proportional to 868,879,934.60, 1,303,319,901.90 and 593,380,920.20

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Solution

The fourth proportional to 868,879,934.60, 1,303,319,901.90 and 593,380,920.20 is: 890,071,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,879,934.60 : 1,303,319,901.90 = 593,380,920.20 : x
  2. Step 2: Convert to fraction form
    868,879,934.60/1,303,319,901.90 = 593,380,920.20/x
  3. Step 3: Cross multiply
    868,879,934.60x = 1,303,319,901.90 × 593,380,920.20
  4. Step 4: Simplify right side
    868,879,934.60x = 773,365,162,704,395,904
  5. Step 5: Solve for x
    x = 773,365,162,704,395,904/868,879,934.60
  6. Step 6: Final answer
    x = 890,071,380.30

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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.