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Finding the Third Proportional to 272,925,405.75 and 390,286,332.94

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Solution

The third proportional to 272,925,405.75 and 390,286,332.94 is: 558,113,750.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,925,405.75 : 390,286,332.94 = 390,286,332.94 : x
  2. Step 2: Convert to fraction form
    272,925,405.75/390,286,332.94 = 390,286,332.94/x
  3. Step 3: Cross multiply
    272,925,405.75x = 390,286,332.94 × 390,286,332.94
  4. Step 4: Simplify right side
    272,925,405.75x = 152,323,421,677,801,088
  5. Step 5: Solve for x
    x = 152,323,421,677,801,088/272,925,405.75
  6. Step 6: Final answer
    x = 558,113,750.02

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These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.