Home / 817,688.80-1,227,845.40-618,234.40

Finding the Fourth Proportional to 817,688.80, 1,227,845.40 and 618,234.40

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Solution

The fourth proportional to 817,688.80, 1,227,845.40 and 618,234.40 is: 928,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,688.80 : 1,227,845.40 = 618,234.40 : x
  2. Step 2: Convert to fraction form
    817,688.80/1,227,845.40 = 618,234.40/x
  3. Step 3: Cross multiply
    817,688.80x = 1,227,845.40 × 618,234.40
  4. Step 4: Simplify right side
    817,688.80x = 759,096,264,161.76
  5. Step 5: Solve for x
    x = 759,096,264,161.76/817,688.80
  6. Step 6: Final answer
    x = 928,343.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.