Home / 637,397.16-879,619.35-347,017.17

Finding the Fourth Proportional to 637,397.16, 879,619.35 and 347,017.17

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Solution

The fourth proportional to 637,397.16, 879,619.35 and 347,017.17 is: 478,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,397.16 : 879,619.35 = 347,017.17 : x
  2. Step 2: Convert to fraction form
    637,397.16/879,619.35 = 347,017.17/x
  3. Step 3: Cross multiply
    637,397.16x = 879,619.35 × 347,017.17
  4. Step 4: Simplify right side
    637,397.16x = 305,243,017,514.24
  5. Step 5: Solve for x
    x = 305,243,017,514.24/637,397.16
  6. Step 6: Final answer
    x = 478,889.83

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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.