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Finding the Fourth Proportional to 648,808.32, 895,368.92 and 362,328.68

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Solution

The fourth proportional to 648,808.32, 895,368.92 and 362,328.68 is: 500,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,808.32 : 895,368.92 = 362,328.68 : x
  2. Step 2: Convert to fraction form
    648,808.32/895,368.92 = 362,328.68/x
  3. Step 3: Cross multiply
    648,808.32x = 895,368.92 × 362,328.68
  4. Step 4: Simplify right side
    648,808.32x = 324,417,838,896.63
  5. Step 5: Solve for x
    x = 324,417,838,896.63/648,808.32
  6. Step 6: Final answer
    x = 500,021.08

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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.