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Finding the Fourth Proportional to 546,430.15, 754,661.73 and 415,976.95

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Solution

The fourth proportional to 546,430.15, 754,661.73 and 415,976.95 is: 574,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,430.15 : 754,661.73 = 415,976.95 : x
  2. Step 2: Convert to fraction form
    546,430.15/754,661.73 = 415,976.95/x
  3. Step 3: Cross multiply
    546,430.15x = 754,661.73 × 415,976.95
  4. Step 4: Simplify right side
    546,430.15x = 313,921,878,873.93
  5. Step 5: Solve for x
    x = 313,921,878,873.93/546,430.15
  6. Step 6: Final answer
    x = 574,495.90

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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.