Home / 649,391.19-896,444.34-496,435.74

Finding the Fourth Proportional to 649,391.19, 896,444.34 and 496,435.74

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Solution

The fourth proportional to 649,391.19, 896,444.34 and 496,435.74 is: 685,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,391.19 : 896,444.34 = 496,435.74 : x
  2. Step 2: Convert to fraction form
    649,391.19/896,444.34 = 496,435.74/x
  3. Step 3: Cross multiply
    649,391.19x = 896,444.34 × 496,435.74
  4. Step 4: Simplify right side
    649,391.19x = 445,027,009,296.71
  5. Step 5: Solve for x
    x = 445,027,009,296.71/649,391.19
  6. Step 6: Final answer
    x = 685,298.81

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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.