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Finding the Fourth Proportional to 524,564.10, 788,401.35 and 456,135.30

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Solution

The fourth proportional to 524,564.10, 788,401.35 and 456,135.30 is: 685,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,564.10 : 788,401.35 = 456,135.30 : x
  2. Step 2: Convert to fraction form
    524,564.10/788,401.35 = 456,135.30/x
  3. Step 3: Cross multiply
    524,564.10x = 788,401.35 × 456,135.30
  4. Step 4: Simplify right side
    524,564.10x = 359,617,686,302.66
  5. Step 5: Solve for x
    x = 359,617,686,302.66/524,564.10
  6. Step 6: Final answer
    x = 685,555.28

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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.