Home / 878,793.48-1,212,718.95-496,820.36

Finding the Fourth Proportional to 878,793.48, 1,212,718.95 and 496,820.36

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Solution

The fourth proportional to 878,793.48, 1,212,718.95 and 496,820.36 is: 685,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,793.48 : 1,212,718.95 = 496,820.36 : x
  2. Step 2: Convert to fraction form
    878,793.48/1,212,718.95 = 496,820.36/x
  3. Step 3: Cross multiply
    878,793.48x = 1,212,718.95 × 496,820.36
  4. Step 4: Simplify right side
    878,793.48x = 602,503,459,254.23
  5. Step 5: Solve for x
    x = 602,503,459,254.23/878,793.48
  6. Step 6: Final answer
    x = 685,603.01

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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.