Home / 1,280,565.34-1,920,585.50-470,670.64

Finding the Fourth Proportional to 1,280,565.34, 1,920,585.50 and 470,670.64

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Solution

The fourth proportional to 1,280,565.34, 1,920,585.50 and 470,670.64 is: 705,909.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,565.34 : 1,920,585.50 = 470,670.64 : x
  2. Step 2: Convert to fraction form
    1,280,565.34/1,920,585.50 = 470,670.64/x
  3. Step 3: Cross multiply
    1,280,565.34x = 1,920,585.50 × 470,670.64
  4. Step 4: Simplify right side
    1,280,565.34x = 903,963,206,459.72
  5. Step 5: Solve for x
    x = 903,963,206,459.72/1,280,565.34
  6. Step 6: Final answer
    x = 705,909.47

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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.