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Finding the Fourth Proportional to 434,856.40, 607,554.80 and 434,856.40

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Solution

The fourth proportional to 434,856.40, 607,554.80 and 434,856.40 is: 607,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,856.40 : 607,554.80 = 434,856.40 : x
  2. Step 2: Convert to fraction form
    434,856.40/607,554.80 = 434,856.40/x
  3. Step 3: Cross multiply
    434,856.40x = 607,554.80 × 434,856.40
  4. Step 4: Simplify right side
    434,856.40x = 264,199,093,130.72
  5. Step 5: Solve for x
    x = 264,199,093,130.72/434,856.40
  6. Step 6: Final answer
    x = 607,554.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.