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Finding the Fourth Proportional to 553,349.70, 830,024.55 and 530,021.70

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Solution

The fourth proportional to 553,349.70, 830,024.55 and 530,021.70 is: 795,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,349.70 : 830,024.55 = 530,021.70 : x
  2. Step 2: Convert to fraction form
    553,349.70/830,024.55 = 530,021.70/x
  3. Step 3: Cross multiply
    553,349.70x = 830,024.55 × 530,021.70
  4. Step 4: Simplify right side
    553,349.70x = 439,931,023,032.74
  5. Step 5: Solve for x
    x = 439,931,023,032.74/553,349.70
  6. Step 6: Final answer
    x = 795,032.55

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Similar ratio
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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.