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Finding the Fourth Proportional to 556,089.91, 767,395.96 and 314,364.45

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Solution

The fourth proportional to 556,089.91, 767,395.96 and 314,364.45 is: 433,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,089.91 : 767,395.96 = 314,364.45 : x
  2. Step 2: Convert to fraction form
    556,089.91/767,395.96 = 314,364.45/x
  3. Step 3: Cross multiply
    556,089.91x = 767,395.96 × 314,364.45
  4. Step 4: Simplify right side
    556,089.91x = 241,242,008,897.62
  5. Step 5: Solve for x
    x = 241,242,008,897.62/556,089.91
  6. Step 6: Final answer
    x = 433,818.35

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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.