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Finding the Fourth Proportional to 750,886.61, 1,036,218.22 and 406,714.77

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Solution

The fourth proportional to 750,886.61, 1,036,218.22 and 406,714.77 is: 561,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,886.61 : 1,036,218.22 = 406,714.77 : x
  2. Step 2: Convert to fraction form
    750,886.61/1,036,218.22 = 406,714.77/x
  3. Step 3: Cross multiply
    750,886.61x = 1,036,218.22 × 406,714.77
  4. Step 4: Simplify right side
    750,886.61x = 421,445,254,000.32
  5. Step 5: Solve for x
    x = 421,445,254,000.32/750,886.61
  6. Step 6: Final answer
    x = 561,263.51

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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.