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Finding the Fourth Proportional to 525,346.66, 786,888.12 and 355,937.50

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Solution

The fourth proportional to 525,346.66, 786,888.12 and 355,937.50 is: 533,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,346.66 : 786,888.12 = 355,937.50 : x
  2. Step 2: Convert to fraction form
    525,346.66/786,888.12 = 355,937.50/x
  3. Step 3: Cross multiply
    525,346.66x = 786,888.12 × 355,937.50
  4. Step 4: Simplify right side
    525,346.66x = 280,082,990,212.50
  5. Step 5: Solve for x
    x = 280,082,990,212.50/525,346.66
  6. Step 6: Final answer
    x = 533,139.38

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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.