Home / 820,618.83-1,133,053.85-530,402.11

Finding the Fourth Proportional to 820,618.83, 1,133,053.85 and 530,402.11

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Solution

The fourth proportional to 820,618.83, 1,133,053.85 and 530,402.11 is: 732,342.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,618.83 : 1,133,053.85 = 530,402.11 : x
  2. Step 2: Convert to fraction form
    820,618.83/1,133,053.85 = 530,402.11/x
  3. Step 3: Cross multiply
    820,618.83x = 1,133,053.85 × 530,402.11
  4. Step 4: Simplify right side
    820,618.83x = 600,974,144,466.34
  5. Step 5: Solve for x
    x = 600,974,144,466.34/820,618.83
  6. Step 6: Final answer
    x = 732,342.62

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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.