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Finding the Fourth Proportional to 675,490,401.27, 931,696,203.06 and 619,915,286.34

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Solution

The fourth proportional to 675,490,401.27, 931,696,203.06 and 619,915,286.34 is: 855,042,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,490,401.27 : 931,696,203.06 = 619,915,286.34 : x
  2. Step 2: Convert to fraction form
    675,490,401.27/931,696,203.06 = 619,915,286.34/x
  3. Step 3: Cross multiply
    675,490,401.27x = 931,696,203.06 × 619,915,286.34
  4. Step 4: Simplify right side
    675,490,401.27x = 577,572,718,501,830,656
  5. Step 5: Solve for x
    x = 577,572,718,501,830,656/675,490,401.27
  6. Step 6: Final answer
    x = 855,042,081.15

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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.