Home / 438,117.90-657,176.85-288,527.10

Finding the Fourth Proportional to 438,117.90, 657,176.85 and 288,527.10

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Solution

The fourth proportional to 438,117.90, 657,176.85 and 288,527.10 is: 432,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,117.90 : 657,176.85 = 288,527.10 : x
  2. Step 2: Convert to fraction form
    438,117.90/657,176.85 = 288,527.10/x
  3. Step 3: Cross multiply
    438,117.90x = 657,176.85 × 288,527.10
  4. Step 4: Simplify right side
    438,117.90x = 189,613,330,717.64
  5. Step 5: Solve for x
    x = 189,613,330,717.64/438,117.90
  6. Step 6: Final answer
    x = 432,790.65

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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.