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Finding the Fourth Proportional to 586,264.36, 879,430.56 and 165,505

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Solution

The fourth proportional to 586,264.36, 879,430.56 and 165,505 is: 248,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,264.36 : 879,430.56 = 165,505 : x
  2. Step 2: Convert to fraction form
    586,264.36/879,430.56 = 165,505/x
  3. Step 3: Cross multiply
    586,264.36x = 879,430.56 × 165,505
  4. Step 4: Simplify right side
    586,264.36x = 145,550,154,832.80
  5. Step 5: Solve for x
    x = 145,550,154,832.80/586,264.36
  6. Step 6: Final answer
    x = 248,267.10

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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.