Home / 621,386.24-857,166.72-430,511.36

Finding the Fourth Proportional to 621,386.24, 857,166.72 and 430,511.36

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Solution

The fourth proportional to 621,386.24, 857,166.72 and 430,511.36 is: 593,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,386.24 : 857,166.72 = 430,511.36 : x
  2. Step 2: Convert to fraction form
    621,386.24/857,166.72 = 430,511.36/x
  3. Step 3: Cross multiply
    621,386.24x = 857,166.72 × 430,511.36
  4. Step 4: Simplify right side
    621,386.24x = 369,020,010,373.94
  5. Step 5: Solve for x
    x = 369,020,010,373.94/621,386.24
  6. Step 6: Final answer
    x = 593,865.76

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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.