Home / 886,312.77-1,224,130.01-645,671.49

Finding the Fourth Proportional to 886,312.77, 1,224,130.01 and 645,671.49

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Solution

The fourth proportional to 886,312.77, 1,224,130.01 and 645,671.49 is: 891,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,312.77 : 1,224,130.01 = 645,671.49 : x
  2. Step 2: Convert to fraction form
    886,312.77/1,224,130.01 = 645,671.49/x
  3. Step 3: Cross multiply
    886,312.77x = 1,224,130.01 × 645,671.49
  4. Step 4: Simplify right side
    886,312.77x = 790,385,847,510.42
  5. Step 5: Solve for x
    x = 790,385,847,510.42/886,312.77
  6. Step 6: Final answer
    x = 891,768.54

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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.