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Finding the Fourth Proportional to 608,099.20, 912,148.80 and 590,603.20

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Solution

The fourth proportional to 608,099.20, 912,148.80 and 590,603.20 is: 885,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,099.20 : 912,148.80 = 590,603.20 : x
  2. Step 2: Convert to fraction form
    608,099.20/912,148.80 = 590,603.20/x
  3. Step 3: Cross multiply
    608,099.20x = 912,148.80 × 590,603.20
  4. Step 4: Simplify right side
    608,099.20x = 538,718,000,156.16
  5. Step 5: Solve for x
    x = 538,718,000,156.16/608,099.20
  6. Step 6: Final answer
    x = 885,904.80

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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.