Home / 870,107,299.11-1,200,777,076.76-488,696,548.14

Finding the Fourth Proportional to 870,107,299.11, 1,200,777,076.76 and 488,696,548.14

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Solution

The fourth proportional to 870,107,299.11, 1,200,777,076.76 and 488,696,548.14 is: 674,417,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,107,299.11 : 1,200,777,076.76 = 488,696,548.14 : x
  2. Step 2: Convert to fraction form
    870,107,299.11/1,200,777,076.76 = 488,696,548.14/x
  3. Step 3: Cross multiply
    870,107,299.11x = 1,200,777,076.76 × 488,696,548.14
  4. Step 4: Simplify right side
    870,107,299.11x = 586,815,612,495,808,384
  5. Step 5: Solve for x
    x = 586,815,612,495,808,384/870,107,299.11
  6. Step 6: Final answer
    x = 674,417,526.55

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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.