Home / 834,032.50-1,151,087.81-528,136.81

Finding the Fourth Proportional to 834,032.50, 1,151,087.81 and 528,136.81

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Solution

The fourth proportional to 834,032.50, 1,151,087.81 and 528,136.81 is: 728,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,032.50 : 1,151,087.81 = 528,136.81 : x
  2. Step 2: Convert to fraction form
    834,032.50/1,151,087.81 = 528,136.81/x
  3. Step 3: Cross multiply
    834,032.50x = 1,151,087.81 × 528,136.81
  4. Step 4: Simplify right side
    834,032.50x = 607,931,841,455.65
  5. Step 5: Solve for x
    x = 607,931,841,455.65/834,032.50
  6. Step 6: Final answer
    x = 728,906.66

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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.