Home / 708,588,326.16-977,850,446.54-395,303,856.66

Finding the Fourth Proportional to 708,588,326.16, 977,850,446.54 and 395,303,856.66

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Solution

The fourth proportional to 708,588,326.16, 977,850,446.54 and 395,303,856.66 is: 545,518,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,588,326.16 : 977,850,446.54 = 395,303,856.66 : x
  2. Step 2: Convert to fraction form
    708,588,326.16/977,850,446.54 = 395,303,856.66/x
  3. Step 3: Cross multiply
    708,588,326.16x = 977,850,446.54 × 395,303,856.66
  4. Step 4: Simplify right side
    708,588,326.16x = 386,548,052,751,988,672
  5. Step 5: Solve for x
    x = 386,548,052,751,988,672/708,588,326.16
  6. Step 6: Final answer
    x = 545,518,516.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.