Home / 929,560.80-1,282,501.50-521,602.68

Finding the Fourth Proportional to 929,560.80, 1,282,501.50 and 521,602.68

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Solution

The fourth proportional to 929,560.80, 1,282,501.50 and 521,602.68 is: 719,647.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,560.80 : 1,282,501.50 = 521,602.68 : x
  2. Step 2: Convert to fraction form
    929,560.80/1,282,501.50 = 521,602.68/x
  3. Step 3: Cross multiply
    929,560.80x = 1,282,501.50 × 521,602.68
  4. Step 4: Simplify right side
    929,560.80x = 668,956,219,504.02
  5. Step 5: Solve for x
    x = 668,956,219,504.02/929,560.80
  6. Step 6: Final answer
    x = 719,647.62

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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.