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Finding the Fourth Proportional to 608,315,217.40, 912,472,826.10 and 572,483,409.40

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Solution

The fourth proportional to 608,315,217.40, 912,472,826.10 and 572,483,409.40 is: 858,725,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,315,217.40 : 912,472,826.10 = 572,483,409.40 : x
  2. Step 2: Convert to fraction form
    608,315,217.40/912,472,826.10 = 572,483,409.40/x
  3. Step 3: Cross multiply
    608,315,217.40x = 912,472,826.10 × 572,483,409.40
  4. Step 4: Simplify right side
    608,315,217.40x = 522,375,554,470,581,312
  5. Step 5: Solve for x
    x = 522,375,554,470,581,312/608,315,217.40
  6. Step 6: Final answer
    x = 858,725,114.10

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Double scale
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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.