Home / 520,944,599.61-718,911,970.43-286,016,917.05

Finding the Fourth Proportional to 520,944,599.61, 718,911,970.43 and 286,016,917.05

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Solution

The fourth proportional to 520,944,599.61, 718,911,970.43 and 286,016,917.05 is: 394,707,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,944,599.61 : 718,911,970.43 = 286,016,917.05 : x
  2. Step 2: Convert to fraction form
    520,944,599.61/718,911,970.43 = 286,016,917.05/x
  3. Step 3: Cross multiply
    520,944,599.61x = 718,911,970.43 × 286,016,917.05
  4. Step 4: Simplify right side
    520,944,599.61x = 205,620,985,411,299,264
  5. Step 5: Solve for x
    x = 205,620,985,411,299,264/520,944,599.61
  6. Step 6: Final answer
    x = 394,707,970.03

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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.