Home / 830,416.37-1,145,735.73-540,454.79

Finding the Fourth Proportional to 830,416.37, 1,145,735.73 and 540,454.79

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Solution

The fourth proportional to 830,416.37, 1,145,735.73 and 540,454.79 is: 745,672.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,416.37 : 1,145,735.73 = 540,454.79 : x
  2. Step 2: Convert to fraction form
    830,416.37/1,145,735.73 = 540,454.79/x
  3. Step 3: Cross multiply
    830,416.37x = 1,145,735.73 × 540,454.79
  4. Step 4: Simplify right side
    830,416.37x = 619,218,363,352.65
  5. Step 5: Solve for x
    x = 619,218,363,352.65/830,416.37
  6. Step 6: Final answer
    x = 745,672.16

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Double scale
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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.