Home / 554,038.16-764,581.60-312,332.56

Finding the Fourth Proportional to 554,038.16, 764,581.60 and 312,332.56

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Solution

The fourth proportional to 554,038.16, 764,581.60 and 312,332.56 is: 431,023.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,038.16 : 764,581.60 = 312,332.56 : x
  2. Step 2: Convert to fraction form
    554,038.16/764,581.60 = 312,332.56/x
  3. Step 3: Cross multiply
    554,038.16x = 764,581.60 × 312,332.56
  4. Step 4: Simplify right side
    554,038.16x = 238,803,728,456.90
  5. Step 5: Solve for x
    x = 238,803,728,456.90/554,038.16
  6. Step 6: Final answer
    x = 431,023.97

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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.