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Finding the Fourth Proportional to 508,356.40, 762,038.88 and 242,045.32

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Solution

The fourth proportional to 508,356.40, 762,038.88 and 242,045.32 is: 362,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,356.40 : 762,038.88 = 242,045.32 : x
  2. Step 2: Convert to fraction form
    508,356.40/762,038.88 = 242,045.32/x
  3. Step 3: Cross multiply
    508,356.40x = 762,038.88 × 242,045.32
  4. Step 4: Simplify right side
    508,356.40x = 184,447,944,562.04
  5. Step 5: Solve for x
    x = 184,447,944,562.04/508,356.40
  6. Step 6: Final answer
    x = 362,831.95

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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.