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Finding the Fourth Proportional to 610,415,981.70, 915,623,972.55 and 586,607,424.90

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Solution

The fourth proportional to 610,415,981.70, 915,623,972.55 and 586,607,424.90 is: 879,911,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,415,981.70 : 915,623,972.55 = 586,607,424.90 : x
  2. Step 2: Convert to fraction form
    610,415,981.70/915,623,972.55 = 586,607,424.90/x
  3. Step 3: Cross multiply
    610,415,981.70x = 915,623,972.55 × 586,607,424.90
  4. Step 4: Simplify right side
    610,415,981.70x = 537,111,820,714,263,744
  5. Step 5: Solve for x
    x = 537,111,820,714,263,744/610,415,981.70
  6. Step 6: Final answer
    x = 879,911,137.35

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Double scale
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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.