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Finding the Fourth Proportional to 710,214.02, 980,088.85 and 387,924.02

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Solution

The fourth proportional to 710,214.02, 980,088.85 and 387,924.02 is: 535,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,214.02 : 980,088.85 = 387,924.02 : x
  2. Step 2: Convert to fraction form
    710,214.02/980,088.85 = 387,924.02/x
  3. Step 3: Cross multiply
    710,214.02x = 980,088.85 × 387,924.02
  4. Step 4: Simplify right side
    710,214.02x = 380,200,006,649.18
  5. Step 5: Solve for x
    x = 380,200,006,649.18/710,214.02
  6. Step 6: Final answer
    x = 535,331.60

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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.