Home / 1,005,912-1,387,329.12-603,218.88

Finding the Fourth Proportional to 1,005,912, 1,387,329.12 and 603,218.88

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Solution

The fourth proportional to 1,005,912, 1,387,329.12 and 603,218.88 is: 831,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,912 : 1,387,329.12 = 603,218.88 : x
  2. Step 2: Convert to fraction form
    1,005,912/1,387,329.12 = 603,218.88/x
  3. Step 3: Cross multiply
    1,005,912x = 1,387,329.12 × 603,218.88
  4. Step 4: Simplify right side
    1,005,912x = 836,863,117,957.79
  5. Step 5: Solve for x
    x = 836,863,117,957.79/1,005,912
  6. Step 6: Final answer
    x = 831,944.66

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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.