Home / 708,117.53-977,189.85-385,830.29

Finding the Fourth Proportional to 708,117.53, 977,189.85 and 385,830.29

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Solution

The fourth proportional to 708,117.53, 977,189.85 and 385,830.29 is: 532,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,117.53 : 977,189.85 = 385,830.29 : x
  2. Step 2: Convert to fraction form
    708,117.53/977,189.85 = 385,830.29/x
  3. Step 3: Cross multiply
    708,117.53x = 977,189.85 × 385,830.29
  4. Step 4: Simplify right side
    708,117.53x = 377,029,443,210.56
  5. Step 5: Solve for x
    x = 377,029,443,210.56/708,117.53
  6. Step 6: Final answer
    x = 532,439.08

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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.