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Finding the Fourth Proportional to 556,154.91, 767,533.12 and 314,439.77

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Solution

The fourth proportional to 556,154.91, 767,533.12 and 314,439.77 is: 433,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,154.91 : 767,533.12 = 314,439.77 : x
  2. Step 2: Convert to fraction form
    556,154.91/767,533.12 = 314,439.77/x
  3. Step 3: Cross multiply
    556,154.91x = 767,533.12 × 314,439.77
  4. Step 4: Simplify right side
    556,154.91x = 241,342,938,852.92
  5. Step 5: Solve for x
    x = 241,342,938,852.92/556,154.91
  6. Step 6: Final answer
    x = 433,949.13

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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.