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Finding the Fourth Proportional to 675,779.21, 932,577.78 and 365,681.79

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Solution

The fourth proportional to 675,779.21, 932,577.78 and 365,681.79 is: 504,642.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,779.21 : 932,577.78 = 365,681.79 : x
  2. Step 2: Convert to fraction form
    675,779.21/932,577.78 = 365,681.79/x
  3. Step 3: Cross multiply
    675,779.21x = 932,577.78 × 365,681.79
  4. Step 4: Simplify right side
    675,779.21x = 341,026,711,904.63
  5. Step 5: Solve for x
    x = 341,026,711,904.63/675,779.21
  6. Step 6: Final answer
    x = 504,642.21

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1.5x scale

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.