Home / 714,263.53-985,712.08-391,985.26

Finding the Fourth Proportional to 714,263.53, 985,712.08 and 391,985.26

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Solution

The fourth proportional to 714,263.53, 985,712.08 and 391,985.26 is: 540,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,263.53 : 985,712.08 = 391,985.26 : x
  2. Step 2: Convert to fraction form
    714,263.53/985,712.08 = 391,985.26/x
  3. Step 3: Cross multiply
    714,263.53x = 985,712.08 × 391,985.26
  4. Step 4: Simplify right side
    714,263.53x = 386,384,605,963.94
  5. Step 5: Solve for x
    x = 386,384,605,963.94/714,263.53
  6. Step 6: Final answer
    x = 540,955.25

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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.