Home / 935,411.68-1,290,880.56-553,428.64

Finding the Fourth Proportional to 935,411.68, 1,290,880.56 and 553,428.64

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Solution

The fourth proportional to 935,411.68, 1,290,880.56 and 553,428.64 is: 763,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,411.68 : 1,290,880.56 = 553,428.64 : x
  2. Step 2: Convert to fraction form
    935,411.68/1,290,880.56 = 553,428.64/x
  3. Step 3: Cross multiply
    935,411.68x = 1,290,880.56 × 553,428.64
  4. Step 4: Simplify right side
    935,411.68x = 714,410,272,723.24
  5. Step 5: Solve for x
    x = 714,410,272,723.24/935,411.68
  6. Step 6: Final answer
    x = 763,738.88

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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.