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Finding the Fourth Proportional to 459,798,054.40, 689,886,038.40 and 168,804,582.40

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Solution

The fourth proportional to 459,798,054.40, 689,886,038.40 and 168,804,582.40 is: 253,276,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,798,054.40 : 689,886,038.40 = 168,804,582.40 : x
  2. Step 2: Convert to fraction form
    459,798,054.40/689,886,038.40 = 168,804,582.40/x
  3. Step 3: Cross multiply
    459,798,054.40x = 689,886,038.40 × 168,804,582.40
  4. Step 4: Simplify right side
    459,798,054.40x = 116,455,924,615,702,368
  5. Step 5: Solve for x
    x = 116,455,924,615,702,368/459,798,054.40
  6. Step 6: Final answer
    x = 253,276,244.87

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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.