Home / 834,626,400.80-1,251,939,601.20-528,264,442.40

Finding the Fourth Proportional to 834,626,400.80, 1,251,939,601.20 and 528,264,442.40

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Solution

The fourth proportional to 834,626,400.80, 1,251,939,601.20 and 528,264,442.40 is: 792,396,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,626,400.80 : 1,251,939,601.20 = 528,264,442.40 : x
  2. Step 2: Convert to fraction form
    834,626,400.80/1,251,939,601.20 = 528,264,442.40/x
  3. Step 3: Cross multiply
    834,626,400.80x = 1,251,939,601.20 × 528,264,442.40
  4. Step 4: Simplify right side
    834,626,400.80x = 661,355,175,346,396,416
  5. Step 5: Solve for x
    x = 661,355,175,346,396,416/834,626,400.80
  6. Step 6: Final answer
    x = 792,396,663.60

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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.