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Finding the Fourth Proportional to 885,341.76, 1,328,009.76 and 530,462.40

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Solution

The fourth proportional to 885,341.76, 1,328,009.76 and 530,462.40 is: 795,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,341.76 : 1,328,009.76 = 530,462.40 : x
  2. Step 2: Convert to fraction form
    885,341.76/1,328,009.76 = 530,462.40/x
  3. Step 3: Cross multiply
    885,341.76x = 1,328,009.76 × 530,462.40
  4. Step 4: Simplify right side
    885,341.76x = 704,459,244,513.02
  5. Step 5: Solve for x
    x = 704,459,244,513.02/885,341.76
  6. Step 6: Final answer
    x = 795,691.87

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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.