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Finding the Fourth Proportional to 604,920.90, 907,337.61 and 289,293.06

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Solution

The fourth proportional to 604,920.90, 907,337.61 and 289,293.06 is: 433,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,920.90 : 907,337.61 = 289,293.06 : x
  2. Step 2: Convert to fraction form
    604,920.90/907,337.61 = 289,293.06/x
  3. Step 3: Cross multiply
    604,920.90x = 907,337.61 × 289,293.06
  4. Step 4: Simplify right side
    604,920.90x = 262,486,473,649.99
  5. Step 5: Solve for x
    x = 262,486,473,649.99/604,920.90
  6. Step 6: Final answer
    x = 433,918.67

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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.