Home / 430,018.04-644,804.04-193,158.38

Finding the Fourth Proportional to 430,018.04, 644,804.04 and 193,158.38

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Solution

The fourth proportional to 430,018.04, 644,804.04 and 193,158.38 is: 289,637.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,018.04 : 644,804.04 = 193,158.38 : x
  2. Step 2: Convert to fraction form
    430,018.04/644,804.04 = 193,158.38/x
  3. Step 3: Cross multiply
    430,018.04x = 644,804.04 × 193,158.38
  4. Step 4: Simplify right side
    430,018.04x = 124,549,303,783.86
  5. Step 5: Solve for x
    x = 124,549,303,783.86/430,018.04
  6. Step 6: Final answer
    x = 289,637.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.