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Finding the Fourth Proportional to 514,875.96, 710,528.78 and 285,432.67

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Solution

The fourth proportional to 514,875.96, 710,528.78 and 285,432.67 is: 393,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,875.96 : 710,528.78 = 285,432.67 : x
  2. Step 2: Convert to fraction form
    514,875.96/710,528.78 = 285,432.67/x
  3. Step 3: Cross multiply
    514,875.96x = 710,528.78 × 285,432.67
  4. Step 4: Simplify right side
    514,875.96x = 202,808,125,724.50
  5. Step 5: Solve for x
    x = 202,808,125,724.50/514,875.96
  6. Step 6: Final answer
    x = 393,897.06

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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.