Home / 521,515,950.93-719,689,653.59-286,565,928.57

Finding the Fourth Proportional to 521,515,950.93, 719,689,653.59 and 286,565,928.57

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Solution

The fourth proportional to 521,515,950.93, 719,689,653.59 and 286,565,928.57 is: 395,459,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,515,950.93 : 719,689,653.59 = 286,565,928.57 : x
  2. Step 2: Convert to fraction form
    521,515,950.93/719,689,653.59 = 286,565,928.57/x
  3. Step 3: Cross multiply
    521,515,950.93x = 719,689,653.59 × 286,565,928.57
  4. Step 4: Simplify right side
    521,515,950.93x = 206,238,533,861,807,168
  5. Step 5: Solve for x
    x = 206,238,533,861,807,168/521,515,950.93
  6. Step 6: Final answer
    x = 395,459,685.35

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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.