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Finding the Fourth Proportional to 1,009,590, 1,393,332.62 and 556,881

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Solution

The fourth proportional to 1,009,590, 1,393,332.62 and 556,881 is: 768,550.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,590 : 1,393,332.62 = 556,881 : x
  2. Step 2: Convert to fraction form
    1,009,590/1,393,332.62 = 556,881/x
  3. Step 3: Cross multiply
    1,009,590x = 1,393,332.62 × 556,881
  4. Step 4: Simplify right side
    1,009,590x = 775,920,459,973.82
  5. Step 5: Solve for x
    x = 775,920,459,973.82/1,009,590
  6. Step 6: Final answer
    x = 768,550.06

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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.