Home / 663,600.47-990,556.16-569,435.77

Finding the Fourth Proportional to 663,600.47, 990,556.16 and 569,435.77

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Solution

The fourth proportional to 663,600.47, 990,556.16 and 569,435.77 is: 849,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,600.47 : 990,556.16 = 569,435.77 : x
  2. Step 2: Convert to fraction form
    663,600.47/990,556.16 = 569,435.77/x
  3. Step 3: Cross multiply
    663,600.47x = 990,556.16 × 569,435.77
  4. Step 4: Simplify right side
    663,600.47x = 564,058,104,745.06
  5. Step 5: Solve for x
    x = 564,058,104,745.06/663,600.47
  6. Step 6: Final answer
    x = 849,996.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.