Home / 838,683.39-1,157,431.68-631,581

Finding the Fourth Proportional to 838,683.39, 1,157,431.68 and 631,581

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Solution

The fourth proportional to 838,683.39, 1,157,431.68 and 631,581 is: 871,618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,683.39 : 1,157,431.68 = 631,581 : x
  2. Step 2: Convert to fraction form
    838,683.39/1,157,431.68 = 631,581/x
  3. Step 3: Cross multiply
    838,683.39x = 1,157,431.68 × 631,581
  4. Step 4: Simplify right side
    838,683.39x = 731,011,857,886.08
  5. Step 5: Solve for x
    x = 731,011,857,886.08/838,683.39
  6. Step 6: Final answer
    x = 871,618.38

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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.