Home / 648,678.86-973,111.15-199,437.45

Finding the Fourth Proportional to 648,678.86, 973,111.15 and 199,437.45

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Solution

The fourth proportional to 648,678.86, 973,111.15 and 199,437.45 is: 299,184.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,678.86 : 973,111.15 = 199,437.45 : x
  2. Step 2: Convert to fraction form
    648,678.86/973,111.15 = 199,437.45/x
  3. Step 3: Cross multiply
    648,678.86x = 973,111.15 × 199,437.45
  4. Step 4: Simplify right side
    648,678.86x = 194,074,806,821.16
  5. Step 5: Solve for x
    x = 194,074,806,821.16/648,678.86
  6. Step 6: Final answer
    x = 299,184.73

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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.