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Finding the Fourth Proportional to 468,407.90, 646,404.48 and 253,547.88

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Solution

The fourth proportional to 468,407.90, 646,404.48 and 253,547.88 is: 349,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,407.90 : 646,404.48 = 253,547.88 : x
  2. Step 2: Convert to fraction form
    468,407.90/646,404.48 = 253,547.88/x
  3. Step 3: Cross multiply
    468,407.90x = 646,404.48 × 253,547.88
  4. Step 4: Simplify right side
    468,407.90x = 163,894,485,526.50
  5. Step 5: Solve for x
    x = 163,894,485,526.50/468,407.90
  6. Step 6: Final answer
    x = 349,896.93

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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.