Home / 903,501.80-1,356,807.90-639,117.80

Finding the Fourth Proportional to 903,501.80, 1,356,807.90 and 639,117.80

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Solution

The fourth proportional to 903,501.80, 1,356,807.90 and 639,117.80 is: 959,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,501.80 : 1,356,807.90 = 639,117.80 : x
  2. Step 2: Convert to fraction form
    903,501.80/1,356,807.90 = 639,117.80/x
  3. Step 3: Cross multiply
    903,501.80x = 1,356,807.90 × 639,117.80
  4. Step 4: Simplify right side
    903,501.80x = 867,160,080,070.62
  5. Step 5: Solve for x
    x = 867,160,080,070.62/903,501.80
  6. Step 6: Final answer
    x = 959,776.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.