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Finding the Fourth Proportional to 502,362.40, 753,457.20 and 186,656.80

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Solution

The fourth proportional to 502,362.40, 753,457.20 and 186,656.80 is: 279,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,362.40 : 753,457.20 = 186,656.80 : x
  2. Step 2: Convert to fraction form
    502,362.40/753,457.20 = 186,656.80/x
  3. Step 3: Cross multiply
    502,362.40x = 753,457.20 × 186,656.80
  4. Step 4: Simplify right side
    502,362.40x = 140,637,909,888.96
  5. Step 5: Solve for x
    x = 140,637,909,888.96/502,362.40
  6. Step 6: Final answer
    x = 279,953.10

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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.