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Finding the Fourth Proportional to 607,070.10, 910,860.30 and 326,259.30

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Solution

The fourth proportional to 607,070.10, 910,860.30 and 326,259.30 is: 489,526.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,070.10 : 910,860.30 = 326,259.30 : x
  2. Step 2: Convert to fraction form
    607,070.10/910,860.30 = 326,259.30/x
  3. Step 3: Cross multiply
    607,070.10x = 910,860.30 × 326,259.30
  4. Step 4: Simplify right side
    607,070.10x = 297,176,643,875.79
  5. Step 5: Solve for x
    x = 297,176,643,875.79/607,070.10
  6. Step 6: Final answer
    x = 489,526.08

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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.