Home / 589,088.03-813,420.86-480,209.45

Finding the Fourth Proportional to 589,088.03, 813,420.86 and 480,209.45

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Solution

The fourth proportional to 589,088.03, 813,420.86 and 480,209.45 is: 663,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,088.03 : 813,420.86 = 480,209.45 : x
  2. Step 2: Convert to fraction form
    589,088.03/813,420.86 = 480,209.45/x
  3. Step 3: Cross multiply
    589,088.03x = 813,420.86 × 480,209.45
  4. Step 4: Simplify right side
    589,088.03x = 390,612,377,330.98
  5. Step 5: Solve for x
    x = 390,612,377,330.98/589,088.03
  6. Step 6: Final answer
    x = 663,079.81

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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.