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Finding the Fourth Proportional to 692,660,367.36, 955,966,408.63 and 424,688,810.13

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Solution

The fourth proportional to 692,660,367.36, 955,966,408.63 and 424,688,810.13 is: 586,128,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,660,367.36 : 955,966,408.63 = 424,688,810.13 : x
  2. Step 2: Convert to fraction form
    692,660,367.36/955,966,408.63 = 424,688,810.13/x
  3. Step 3: Cross multiply
    692,660,367.36x = 955,966,408.63 × 424,688,810.13
  4. Step 4: Simplify right side
    692,660,367.36x = 405,988,236,604,262,336
  5. Step 5: Solve for x
    x = 405,988,236,604,262,336/692,660,367.36
  6. Step 6: Final answer
    x = 586,128,867.39

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Double scale
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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.