Home / 623,890.05-860,758.85-508,970.03

Finding the Fourth Proportional to 623,890.05, 860,758.85 and 508,970.03

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Solution

The fourth proportional to 623,890.05, 860,758.85 and 508,970.03 is: 702,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,890.05 : 860,758.85 = 508,970.03 : x
  2. Step 2: Convert to fraction form
    623,890.05/860,758.85 = 508,970.03/x
  3. Step 3: Cross multiply
    623,890.05x = 860,758.85 × 508,970.03
  4. Step 4: Simplify right side
    623,890.05x = 438,100,459,517.67
  5. Step 5: Solve for x
    x = 438,100,459,517.67/623,890.05
  6. Step 6: Final answer
    x = 702,207.80

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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.