Home / 985,585.10-1,360,398.32-577,775.21

Finding the Fourth Proportional to 985,585.10, 1,360,398.32 and 577,775.21

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Solution

The fourth proportional to 985,585.10, 1,360,398.32 and 577,775.21 is: 797,500.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,585.10 : 1,360,398.32 = 577,775.21 : x
  2. Step 2: Convert to fraction form
    985,585.10/1,360,398.32 = 577,775.21/x
  3. Step 3: Cross multiply
    985,585.10x = 1,360,398.32 × 577,775.21
  4. Step 4: Simplify right side
    985,585.10x = 786,004,415,330.78
  5. Step 5: Solve for x
    x = 786,004,415,330.78/985,585.10
  6. Step 6: Final answer
    x = 797,500.31

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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.