Home / 612,111.15-918,166.73-521,569.35

Finding the Fourth Proportional to 612,111.15, 918,166.73 and 521,569.35

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Solution

The fourth proportional to 612,111.15, 918,166.73 and 521,569.35 is: 782,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,111.15 : 918,166.73 = 521,569.35 : x
  2. Step 2: Convert to fraction form
    612,111.15/918,166.73 = 521,569.35/x
  3. Step 3: Cross multiply
    612,111.15x = 918,166.73 × 521,569.35
  4. Step 4: Simplify right side
    612,111.15x = 478,887,621,949.88
  5. Step 5: Solve for x
    x = 478,887,621,949.88/612,111.15
  6. Step 6: Final answer
    x = 782,354.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.