Home / 630,925.32-869,153.04-539,990.40

Finding the Fourth Proportional to 630,925.32, 869,153.04 and 539,990.40

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Solution

The fourth proportional to 630,925.32, 869,153.04 and 539,990.40 is: 743,882.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,925.32 : 869,153.04 = 539,990.40 : x
  2. Step 2: Convert to fraction form
    630,925.32/869,153.04 = 539,990.40/x
  3. Step 3: Cross multiply
    630,925.32x = 869,153.04 × 539,990.40
  4. Step 4: Simplify right side
    630,925.32x = 469,334,297,730.82
  5. Step 5: Solve for x
    x = 469,334,297,730.82/630,925.32
  6. Step 6: Final answer
    x = 743,882.49

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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.