Home / 644,263.92-889,096.08-357,810.72

Finding the Fourth Proportional to 644,263.92, 889,096.08 and 357,810.72

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Solution

The fourth proportional to 644,263.92, 889,096.08 and 357,810.72 is: 493,785.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,263.92 : 889,096.08 = 357,810.72 : x
  2. Step 2: Convert to fraction form
    644,263.92/889,096.08 = 357,810.72/x
  3. Step 3: Cross multiply
    644,263.92x = 889,096.08 × 357,810.72
  4. Step 4: Simplify right side
    644,263.92x = 318,128,108,533.98
  5. Step 5: Solve for x
    x = 318,128,108,533.98/644,263.92
  6. Step 6: Final answer
    x = 493,785.39

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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.