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Finding the Fourth Proportional to 575,407.90, 804,521.30 and 575,407.90

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Solution

The fourth proportional to 575,407.90, 804,521.30 and 575,407.90 is: 804,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,407.90 : 804,521.30 = 575,407.90 : x
  2. Step 2: Convert to fraction form
    575,407.90/804,521.30 = 575,407.90/x
  3. Step 3: Cross multiply
    575,407.90x = 804,521.30 × 575,407.90
  4. Step 4: Simplify right side
    575,407.90x = 462,927,911,738.27
  5. Step 5: Solve for x
    x = 462,927,911,738.27/575,407.90
  6. Step 6: Final answer
    x = 804,521.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.