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Finding the Fourth Proportional to 581,132.72, 801,920.04 and 326,526.32

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Solution

The fourth proportional to 581,132.72, 801,920.04 and 326,526.32 is: 450,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,132.72 : 801,920.04 = 326,526.32 : x
  2. Step 2: Convert to fraction form
    581,132.72/801,920.04 = 326,526.32/x
  3. Step 3: Cross multiply
    581,132.72x = 801,920.04 × 326,526.32
  4. Step 4: Simplify right side
    581,132.72x = 261,847,999,595.45
  5. Step 5: Solve for x
    x = 261,847,999,595.45/581,132.72
  6. Step 6: Final answer
    x = 450,582.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.