Home / 928,227.90-1,280,707.56-535,661.40

Finding the Fourth Proportional to 928,227.90, 1,280,707.56 and 535,661.40

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Solution

The fourth proportional to 928,227.90, 1,280,707.56 and 535,661.40 is: 739,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,227.90 : 1,280,707.56 = 535,661.40 : x
  2. Step 2: Convert to fraction form
    928,227.90/1,280,707.56 = 535,661.40/x
  3. Step 3: Cross multiply
    928,227.90x = 1,280,707.56 × 535,661.40
  4. Step 4: Simplify right side
    928,227.90x = 686,025,604,580.18
  5. Step 5: Solve for x
    x = 686,025,604,580.18/928,227.90
  6. Step 6: Final answer
    x = 739,070.23

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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.