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Finding the Fourth Proportional to 615,009.40, 922,902.90 and 362,289.40

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Solution

The fourth proportional to 615,009.40, 922,902.90 and 362,289.40 is: 543,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,009.40 : 922,902.90 = 362,289.40 : x
  2. Step 2: Convert to fraction form
    615,009.40/922,902.90 = 362,289.40/x
  3. Step 3: Cross multiply
    615,009.40x = 922,902.90 × 362,289.40
  4. Step 4: Simplify right side
    615,009.40x = 334,357,937,899.26
  5. Step 5: Solve for x
    x = 334,357,937,899.26/615,009.40
  6. Step 6: Final answer
    x = 543,663.13

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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.