Home / 873,074,661.80-1,309,611,992.70-528,700,893.80

Finding the Fourth Proportional to 873,074,661.80, 1,309,611,992.70 and 528,700,893.80

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Solution

The fourth proportional to 873,074,661.80, 1,309,611,992.70 and 528,700,893.80 is: 793,051,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,074,661.80 : 1,309,611,992.70 = 528,700,893.80 : x
  2. Step 2: Convert to fraction form
    873,074,661.80/1,309,611,992.70 = 528,700,893.80/x
  3. Step 3: Cross multiply
    873,074,661.80x = 1,309,611,992.70 × 528,700,893.80
  4. Step 4: Simplify right side
    873,074,661.80x = 692,393,031,071,689,088
  5. Step 5: Solve for x
    x = 692,393,031,071,689,088/873,074,661.80
  6. Step 6: Final answer
    x = 793,051,340.70

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Double scale
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Similar ratio
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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.