Home / 852,984,806.40-1,279,477,209.60-557,078,457.60

Finding the Fourth Proportional to 852,984,806.40, 1,279,477,209.60 and 557,078,457.60

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Solution

The fourth proportional to 852,984,806.40, 1,279,477,209.60 and 557,078,457.60 is: 835,617,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,984,806.40 : 1,279,477,209.60 = 557,078,457.60 : x
  2. Step 2: Convert to fraction form
    852,984,806.40/1,279,477,209.60 = 557,078,457.60/x
  3. Step 3: Cross multiply
    852,984,806.40x = 1,279,477,209.60 × 557,078,457.60
  4. Step 4: Simplify right side
    852,984,806.40x = 712,769,190,458,319,872
  5. Step 5: Solve for x
    x = 712,769,190,458,319,872/852,984,806.40
  6. Step 6: Final answer
    x = 835,617,686.40

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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.