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Finding the Fourth Proportional to 590,477.76, 885,720 and 147,245.76

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Solution

The fourth proportional to 590,477.76, 885,720 and 147,245.76 is: 220,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,477.76 : 885,720 = 147,245.76 : x
  2. Step 2: Convert to fraction form
    590,477.76/885,720 = 147,245.76/x
  3. Step 3: Cross multiply
    590,477.76x = 885,720 × 147,245.76
  4. Step 4: Simplify right side
    590,477.76x = 130,418,514,547.20
  5. Step 5: Solve for x
    x = 130,418,514,547.20/590,477.76
  6. Step 6: Final answer
    x = 220,869.48

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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.