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Finding the Fourth Proportional to 875,276, 1,207,880.88 and 472,868

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Solution

The fourth proportional to 875,276, 1,207,880.88 and 472,868 is: 652,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,276 : 1,207,880.88 = 472,868 : x
  2. Step 2: Convert to fraction form
    875,276/1,207,880.88 = 472,868/x
  3. Step 3: Cross multiply
    875,276x = 1,207,880.88 × 472,868
  4. Step 4: Simplify right side
    875,276x = 571,168,215,963.84
  5. Step 5: Solve for x
    x = 571,168,215,963.84/875,276
  6. Step 6: Final answer
    x = 652,557.84

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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.