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Finding the Fourth Proportional to 688,637,730.60, 1,032,956,595.90 and 688,637,730.60

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Solution

The fourth proportional to 688,637,730.60, 1,032,956,595.90 and 688,637,730.60 is: 1,032,956,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,637,730.60 : 1,032,956,595.90 = 688,637,730.60 : x
  2. Step 2: Convert to fraction form
    688,637,730.60/1,032,956,595.90 = 688,637,730.60/x
  3. Step 3: Cross multiply
    688,637,730.60x = 1,032,956,595.90 × 688,637,730.60
  4. Step 4: Simplify right side
    688,637,730.60x = 711,332,886,008,877,312
  5. Step 5: Solve for x
    x = 711,332,886,008,877,312/688,637,730.60
  6. Step 6: Final answer
    x = 1,032,956,595.90

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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.