Home / 621,528,389.92-857,709,263.46-343,069,972.48

Finding the Fourth Proportional to 621,528,389.92, 857,709,263.46 and 343,069,972.48

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Solution

The fourth proportional to 621,528,389.92, 857,709,263.46 and 343,069,972.48 is: 473,436,609.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,528,389.92 : 857,709,263.46 = 343,069,972.48 : x
  2. Step 2: Convert to fraction form
    621,528,389.92/857,709,263.46 = 343,069,972.48/x
  3. Step 3: Cross multiply
    621,528,389.92x = 857,709,263.46 × 343,069,972.48
  4. Step 4: Simplify right side
    621,528,389.92x = 294,254,293,411,063,296
  5. Step 5: Solve for x
    x = 294,254,293,411,063,296/621,528,389.92
  6. Step 6: Final answer
    x = 473,436,609.14

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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.