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Finding the Fourth Proportional to 572,887.60, 857,581.80 and 446,916.40

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Solution

The fourth proportional to 572,887.60, 857,581.80 and 446,916.40 is: 669,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,887.60 : 857,581.80 = 446,916.40 : x
  2. Step 2: Convert to fraction form
    572,887.60/857,581.80 = 446,916.40/x
  3. Step 3: Cross multiply
    572,887.60x = 857,581.80 × 446,916.40
  4. Step 4: Simplify right side
    572,887.60x = 383,267,370,761.52
  5. Step 5: Solve for x
    x = 383,267,370,761.52/572,887.60
  6. Step 6: Final answer
    x = 669,009.72

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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.