Home / 1,018,440.34-1,405,425.05-553,282.17

Finding the Fourth Proportional to 1,018,440.34, 1,405,425.05 and 553,282.17

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Solution

The fourth proportional to 1,018,440.34, 1,405,425.05 and 553,282.17 is: 763,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,440.34 : 1,405,425.05 = 553,282.17 : x
  2. Step 2: Convert to fraction form
    1,018,440.34/1,405,425.05 = 553,282.17/x
  3. Step 3: Cross multiply
    1,018,440.34x = 1,405,425.05 × 553,282.17
  4. Step 4: Simplify right side
    1,018,440.34x = 777,596,620,983.28
  5. Step 5: Solve for x
    x = 777,596,620,983.28/1,018,440.34
  6. Step 6: Final answer
    x = 763,517.11

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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.