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Finding the Third Proportional to 434,210 and 915,076

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Solution

The third proportional to 434,210 and 915,076 is: 1,928,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,210 : 915,076 = 915,076 : x
  2. Step 2: Convert to fraction form
    434,210/915,076 = 915,076/x
  3. Step 3: Cross multiply
    434,210x = 915,076 × 915,076
  4. Step 4: Simplify right side
    434,210x = 837,364,085,776
  5. Step 5: Solve for x
    x = 837,364,085,776/434,210
  6. Step 6: Final answer
    x = 1,928,477.20

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.